Games like OSTM

Note: The "DEMO" version is the same as the full game and will remain identical in future updates. It will always be free to enjoy the game (and learn biology), but purchasing the full game to support the developers is also welcome. Explore the CellEmbark on an adventure inside an algal cell. Journey through its expansive microscopic world, uncover hundreds of proteins. Jump, fight,… If you enjoyed this game, see our list of games similar to Meowtabolism - Examining Feline Behavior within Unicellular Algae.

INVERT: THE FRACTURETWO WORLDS. ONE CHOICE.SWITCH TO SURVIVE.Reality was once whole. Then something broke. The Fracture split reality into two opposing worlds — White and Black. You are Shift, an agent capable of moving between them. In a world where everything has two sides, survival depends on one decision: WHEN DO YOU SWITCH?THE WORLD CHANGES WHEN YOU DOINVERT is a fast-paced 2D puzzle-pla… If you enjoyed this game, see our list of games similar to INVERT: The Fracture.

A modern-day narrative mystery where players explore a seemingly ordinary laptop to uncover hidden layers of conspiracy, surveillance, and stolen data. Blending investigative gameplay with branching choices and a grounded tech-thriller tone. Uncover the secrets hidden in plain sightWhen you pick up an old laptop at a local car boot sale, you’re not just getting a bargain - you’re inheriting a dig… If you enjoyed this game, see our list of games similar to Project NexOS.

Prim3 Hunt – The Prime Hunt Puzzle Strategy GameCombine numbers on a 5×5 grid to create prime numbers, control space, and plan every move in a deep minimalist puzzle-strategy experience. Easy to learn. Hard to master. What begins as a simple number puzzle quickly evolves into a system of patterns, risk, and precision. Every decision shapes the board. Every mistake lingers. A signal is trying to… If you enjoyed this game, see our list of games similar to Prim3 Hunt.

96%Game Brain Score

Most mentioned positive aspects:story, music

96% User Score Based on 52 reviews

Spark and The Digital Daydream is a story-based puzzle-platformer where puzzles are intertwined with live-action video and an original soundtrack. Follow Spark, a video game character lost in the world of his creator's computer, as he searches for a way to save his game and something even greater than himself. If you enjoyed this game, see our list of games similar to Spark and The Digital Daydream.

Fair from Past — a pixelated psychological horror Step into the world between lives. You awaken in a sub-reality — a liminal system of passage, where something went wrong. Your journey is not simple escape: it is a slow, irreversible descent through seven layers, each distorting reality in its own way. Core Idea The game combines procedural room generation with heavy atmosphere: here, fear come… If you enjoyed this game, see our list of games similar to Fear From Past.

SFERA - Action platformer. A mix of 3D and retro 2D graphics. You are an assassin for the SFERA corporation. You are tasked with destroying a gang of robots. If you enjoyed this game, see our list of games similar to SFERA.

Year 2068, Lupa Corps, a company specialized in creating domestic artificial intelligence, is about to revolutionize the world with its new creation, Minerva. You are a detective and you receive a call to investigate a murder. Upon arrival, you realize that the victim was a well-known hacker wanted by justice. At that moment a story begins where nothing is what it seems. DETECTIVE Minerva Case i… If you enjoyed this game, see our list of games similar to DETECTIVE - Minerva case.

66%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:grinding, optimization

67% User Score Based on 192 reviews

Critic Score 63%Based on 3 reviews

Explore the birth of sapient AI in this atmospheric hacking adventure set in the sprawling world of Recompile. If you enjoyed this game, see our list of games similar to Recompile.

59%Game Brain Score

Most mentioned positive aspects:music, humor

Most mentioned negative aspects:gameplay, graphics

83% User Score Based on 23 reviews

Unique procedurally generated city-building strategy / action game with single player campaign story. Inspired by Tron, Darwinia, Anno, Settlers etc. If you enjoyed this game, see our list of games similar to Hexters.

85%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:gameplay, replayability

85% User Score Based on 135 reviews

After living for generations as persecuted refugees, the Letarri people set their sights on a far-off planet as a promising new home. But when the interstellar mission to colonize the new world goes terribly awry, the fate of their people falls into the hands of a lone adventurer. Now it's up to you to unravel the mystery of what happened. Can you save them and their mission, or is it already too … If you enjoyed this game, see our list of games similar to Prominence.

Overview After a tragic accident, the kingdom’s magical energy core exploded. The resulting blast shattered the realm and hurled its fragments into the sky, where they now remain suspended in time. CrownFall was developed as a learning project within three weeks (June 17 - July 10). It tells the symbolic story of a fallen king striving to reclaim what was lost — both his world and his strength. … If you enjoyed this game, see our list of games similar to Crownfall.

This title is in early access and will become open source, 1 year after full release which feature the experimental combat system that was cut last minute for showcase in Capcon at SAIT (South Alberta Institute of Technology) and will include a total of 5 missions. Eclipse0 or Eclipse is narrative driven game  powered by RPG Maker MZ. It is the classic tale of the chosen hero going threw the te… If you enjoyed this game, see our list of games similar to Eclipse0.

100%Game Brain Score

Most mentioned positive aspects:emotional, story

Most mentioned negative aspects:gameplay

100% User Score Based on 60 reviews

"Some Goodbyes We Made" is a minigame collection about saying goodbye. It consists of 11 short minigames, each preserving a precious farewell memory. In this game, players will experience many different farewell stories, including moving houses, graduation ceremonies, quarrels with friends, and more. You'll see how the protagonist preserves the sadness and profundity of their goodbyes t… If you enjoyed this game, see our list of games similar to Some Goodbyes We Made.

96%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:grinding, replayability

96% User Score Based on 110 reviews

Super Cable Boy is a retro inspired platformer, where you are playing a living handheld gaming system with a power cord. Collect game cartridges to become more powerful and take on your quest to defeat "the Glitch". If you enjoyed this game, see our list of games similar to Super Cable Boy.

80%Game Brain Score

Most mentioned positive aspects:story, music

Most mentioned negative aspects:gameplay, grinding

80% User Score Based on 122 reviews

Critic Score 80%Based on 2 reviews

Tardy is a quest about fiddling with computers, terminals gadgets and other hi-tech scrap of all sorts. Deal with crazy machines, solve the mystery of the crew disappearance and help Ramto to come back home! If you enjoyed this game, see our list of games similar to Tardy.

89%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:replayability, stability

89% User Score Based on 331 reviews

Critic Score 89%Based on 1 reviews

Far into the future, in the year 1999: David, a systems operator, runs from his troubles by taking a job on a space station. After arriving, his mundane work turns into a struggle for his very life as he makes a shocking discovery. If you enjoyed this game, see our list of games similar to Titan Station.

68%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, stability

68% User Score Based on 197 reviews

Critic Score 68%Based on 1 reviews

A young adventurer Hugh Radcliff is in pursuit of one of the greatest mysteries of history: The Lost Colony. Deal with pirates, dive into native rituals, reveal conspiracies, and make tough choices on your difficult journey for unveiling this mystery! If you enjoyed this game, see our list of games similar to Crowalt: Traces of the Lost Colony.

64%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:graphics, music

74% User Score Based on 34 reviews

Critic Score 67%Based on 6 reviews

A Pixel Story is a devious 2D puzzle platformer that charts the evolution of video games. You must use your Magical Teleportation Hat to explore 6 increasingly detailed zones on your quest to reach the core of The System to stop the evil OS and save the world. If you enjoyed this game, see our list of games similar to A Pixel Story.

73%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:story

93% User Score Based on 29 reviews

Put on a lizard and go for an adventure! Six different ones are scattered across the land, each with a special ability. Carefully hop your way to the top of an active volcano. Surf down a surging river. Swim an underwater lake. Ascend a snowy mountaintop. Can you unravel the mysteries of Lizard? If you enjoyed this game, see our list of games similar to Lizard.

94%Game Brain Score

Most mentioned positive aspects:gameplay, music

Most mentioned negative aspects:story, grinding

94% User Score Based on 64 reviews

Relive the PC shareware era in this run n' roll, retro platformer! As the last remaining polyroll, you must run, jump, roll, float, and bomb your way through bizzare environments to defeat the evil Kaiser Kiwi. If you enjoyed this game, see our list of games similar to Polyroll.

45%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:music, gameplay

71% User Score Based on 14 reviews

The Quest for the Big Key is highly inspired by NES classics that you will no doubt recognize. It focuses more on the exploring part. It comes completely without Enemies and Battles. So if you like finding secret passages and collecting items that allow you to progress in different parts of the map, ... If you enjoyed this game, see our list of games similar to The Quest for the BIG KEY.

Savage Horizons is an adventure game that takes players on an epic journey across distinct environments, including a sprawling desert, a dense and mysterious jungle and the perilous interior of a volcanic cavern.  Are you ready to face the wild and uncover the secrets of this untamed world? If you enjoyed this game, see our list of games similar to Savage Horizons.

   ⚠️ WarningThis game is the work of a single first-time indie developer. Thanks to the feedback I've received from players, I feel it's important to let you know that this experience may make some people uncomfortable. The game explores psychological themes and is intentionally designed to create a sense of unease. If you're particularly sensitive to psychological manipulation, having your dec… If you enjoyed this game, see our list of games similar to Don't Click The Flower.

Call of the Lake focuses on atmosphere, sound design, and storytelling rather than frequent jumpscares. This is a short story-driven experience that takes around 1 hour and 30 minutes to complete. The game also features atmospheric video sequences created специально for the project — the same ones you can see below on the Steam page. They are seamlessly integrated into the narrative and enhance… If you enjoyed this game, see our list of games similar to Call of the Lake.

Stabilize the loop. Break the cycle. Back To Cycle is a retro-futuristic narrative puzzle where short, tense runs combine varied panels with a slow-burn story told through terminals, glitches, and visual cues. Each reset reveals fragments of truth while anomalies distort time and lock systems, demanding quick choices and calm execution. You are not just another operator—you are the one who … If you enjoyed this game, see our list of games similar to Back to Cycle.

Green Piece is a fast-paced 2D platformer shooter where you play as a post-apocalyptic cleaning robot armed with a powerful water jet. Purify corrupted areas, defeat infected enemies, and rescue trapped animals from ancient monuments. Clean. Jump. Shoot. Save the world, one drop at a time. How to Play Green Piece is a short, energetic arcade platformer split into two levels: Level 1 A … If you enjoyed this game, see our list of games similar to Green Piece.

37%Game Brain Score

Most mentioned positive aspects:story, atmosphere

Most mentioned negative aspects:gameplay, monetization

56% User Score Based on 18 reviews

Legacy of the Ark: The Long Awakening is Coming SoonFollow Development and Join the CommunityLegacy of the Ark: The Long Awakening is currently in development and coming soon to Steam. The Ark has fallen, but its story is only beginning. Rebuild a shattered colony ship, restore damaged systems, automate production, expand your crew’s recovery efforts, and uncover the mystery hidden within the Ark… If you enjoyed this game, see our list of games similar to Legacy of the Ark: The Long Awakening.

59%Game Brain Score

Most mentioned positive aspects:graphics, music

Most mentioned negative aspects:story, gameplay

100% User Score Based on 10 reviews

You wake up inside a program, controlling a person with no memories who begs for your help. While restoring his Memory fragments through file manipulation outside of the game, it's revealed that another person interrupts the process, claiming the program is a seal.  Someone is lying. And you have the power to make the right choice. Features Include: Manipulate real files inside the game fold… If you enjoyed this game, see our list of games similar to Solipsistic.

89%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, replayability

89% User Score Based on 605 reviews

You are a prisoner sentenced to explore a derelict megastructure that sprawls deep beneath the surface of the mimic moon Luna. You are tasked with recovering forgotten technology from within the Abyss and the lost colony it consumed. Every move you make will be overseen by your artificial prison guard named Aylin. These centuries-old ruins are alive with maddening echoes, insinuating secrets of t… If you enjoyed this game, see our list of games similar to Luna Abyss.

79%Game Brain Score

Most mentioned positive aspects:story, music

Most mentioned negative aspects:grinding, stability

79% User Score Based on 1,024 reviews

Critic Score 79%Based on 26 reviews

The retro-futuristic pixel game Explore and fight in a retro-futuristic world. Swim deep into a oneiric, poetic and unique experience across dimensional planes. The aesthetic of the game was inspired by retro pixel adventures (Castlevania, Another World, Double Dragon) with a modern touch (Superbrothers, Sword and Sorcery) and an 80s plot homage (Ready Player One, He-Man, The Last Starfighter), … If you enjoyed this game, see our list of games similar to Narita Boy.

52%Game Brain Score

Most mentioned positive aspects:music, humor

Most mentioned negative aspects:gameplay, graphics

78% User Score Based on 18 reviews

Get into my infected computer and restore every virus-ridden system by recovering game attributes like color or save functions. Enjoy this parody of multiple classic games from 80s & 90s. If you enjoyed this game, see our list of games similar to Byte The Bullet.

93%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, replayability

93% User Score Based on 708 reviews

In this exploration-heavy 2D action game, use your demon sword to interfere with the past, create platforms, and shield yourself from danger to explore a dystopian cyberpunk world depicted in gorgeously animated pixel art. If you enjoyed this game, see our list of games similar to BLADECHIMERA.

69%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:stability, replayability

70% User Score Based on 194 reviews

Critic Score 67%Based on 7 reviews

Boti: Byteland Overclocked combines classic 3D platforming with a splash of innovation. Double jump, dash, hover, and glide through vibrant levels, discovering fantastic combos inspired by the very essence of computers and technology.Enjoy the pure delight of gaming together in our drop-in, drop-out co-operative mode. Bond with a friend on your quest to save Byteland, with the gameplay seamlessly … If you enjoyed this game, see our list of games similar to Boti: Byteland Overclocked.

95%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:music, replayability

95% User Score Based on 206 reviews

Filcher is a first-person, 2.5D, mission-based stealth game. As Sporey the master thief, break into guarded buildings to steal from the wealthy and corrupt, using only your senses, your wits, and a handful of tools and gadgets. If you enjoyed this game, see our list of games similar to Filcher.

A single screen retro platformer with a ticking clock, large maps to explore, upgrades to find and lots of secrets. If you enjoyed this game, see our list of games similar to Time Knight Adventures.

83%Game Brain Score

Most mentioned positive aspects:music, gameplay

Most mentioned negative aspects:story, grinding

83% User Score Based on 337 reviews

Qbeh-1: The Atlas Cube is an atmospheric 1st-person puzzle platformer by Liquid Flower that takes players on an inspired quest through a variety of divergent worlds, each filled with new mysteries and secrets to uncover. In each world, players find special cubes that must be collected and used to navigate to the next portal. Some cubes will simply be used as stepping stones to new areas while othe… If you enjoyed this game, see our list of games similar to Qbeh-1: The Atlas Cube.

93%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:grinding

93% User Score Based on 88 reviews

What happened to the Minoan civilization? Join parkour master Marie Taylor and treasure hunter James Andrew in a historical action thriller, as they unveil the secrets of a forgotten kingdom which has been tragically trapped in and endless time loop. Explore a beautifully hand-drawn non-lineal open world, recover valuable relics, chart a lost island, and gather new clues in every loop to complete… If you enjoyed this game, see our list of games similar to Treasures of the Aegean.

83%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:replayability, grinding

91% User Score Based on 1,784 reviews

Critic Score 76%Based on 16 reviews

A dark comedy about the creators of unfinished games, starring James Urbaniak (Venture Bros, American Splendor), Stephen Russell (Thief Series, Skyrim), Ashly Burch (Borderlands 2, HAWP), Karen Dyer (Resident Evil 5) ... and YOU. Can you out-think the game gods? Can you ship a game from the inside? If you enjoyed this game, see our list of games similar to The Magic Circle.

95%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:music, replayability

95% User Score Based on 427 reviews

Muri is a DOS-style shooter from Remar Games and Ludosity. After the colonization of Mars, a team of scientists design an armor suit of cataclysmic power, sparking a conflict between several factions. When Mars suddenly vanishes, one woman sets out to discover the fate of humanity. Inspired by the games of its time, Muri is an authentic '80s experience, with the focus often changing between run-a… If you enjoyed this game, see our list of games similar to MURI.

62%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:grinding, stability

70% User Score Based on 40 reviews

Help Alice find some answers as she joins a unique bunch of scientists, oddballs and theorists at a remote hilltop research facility to investigate some puzzling stone carvings. A single player puzzle/platform game about science and curiosity presented in a modern pixel art style. If you enjoyed this game, see our list of games similar to The Moonstone Equation.

74%Game Brain Score

Most mentioned positive aspects:humor, emotional

Most mentioned negative aspects:gameplay, graphics

74% User Score Based on 65 reviews

Do you enjoy, hard and responsive 2D action games? Can you get lost in a hazardous jungle and return to tell the tale? Then Enyo Arcade invites you deep down into the rabbit hole... Enyo Arcade resembles a modern 2D parkour shooter game. The game is notable for its depth in atmosphere and merciless fast action. Fight or avoid various enemy types and find your way to the exit. Inspired by popular … If you enjoyed this game, see our list of games similar to ENYO Arcade.

62%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, stability

62% User Score Based on 136 reviews

Elliot Quest is an adventure / exploration Zelda style game. Defeat all 4 Elements Guardians and acquire their powers . Explore Urule Island in search for treasures and artifacts, earn money and... If you enjoyed this game, see our list of games similar to Elliot Quest.

92%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:grinding, stability

92% User Score Based on 5,517 reviews

Critic Score 95%Based on 2 reviews

Single Player, HD (High Definition). Manipulate the flow of time. Rescue the Princess. Contemplate the world; save yourself. The full version of Braid allows you to visit all the worlds, and thus use all the time-manipulation powers. Perhaps you will find the Princess and rescue her. There are no refunds for this item. For more information, see www.xbox.com/live/accounts If you enjoyed this game, see our list of games similar to Braid.

77%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:graphics, music

77% User Score Based on 61 reviews

You are dying. Oxygen level in your brain drastically drops down. You are seeing all your life, flashing before your eyes. You are no longer on earth. You are unconscious. For everyone else this is the matter of seconds, but for you this is taking forever. If you enjoyed this game, see our list of games similar to Clinically Dead.

Welcome to a Paradise That No Longer Exists In the distant future, virtual sensory reconstruction has advanced far enough to deceive human perception itself.People can enter digitally reconstructed worlds, touch objects that do not exist, hear sounds that never occurred, and give forgotten memories a tangible form once again. Your wife, Ephoros, a neural science engineer, died in an accident two… If you enjoyed this game, see our list of games similar to 404漫游者.

Terminal Velo.City Terminal Velo.City is a minimalist, Matrix-inspired infinite runner, with Global Leader Board, developed as part of a game portfolio project by Yunuen Vladimir (StudioSuperStudio). This project is designed to showcase my abilities in game development, programming, design, sound, and interactive systems as I transition professionally into the video game industry. You can explor… If you enjoyed this game, see our list of games similar to Terminal Velo.City.

NOSOPHOBIA Nosophobia is a psychological survival horror with elements of thriller, drama, and body horror. You'll take on the role of 23-year-old Jonathan — a former serviceman who sets out to find his 16-year-old sister, Lana. Explore an abandoned psychiatric hospital, uncover its dark secrets, solve puzzles, and try to get out of there alive. Add the game to your wishlist so you don't miss its… If you enjoyed this game, see our list of games similar to Nosophobia.

Awaken the memories of a forgotten world.Sleeping Dragon is a cozy puzzle adventure set in vibrant diorama levels, blending the whimsical charm of animes with clean, low-poly aesthetics. Take on the role of Hiru, a young traveler lost in the Dream Lands. To find your way home, you must explore the realm of the Great Sleeping Dragon. With the guidance of your quirky companion, the Cuckoo Cucko-Pee… If you enjoyed this game, see our list of games similar to Sleeping Dragon.

Nihariely’s Spatial Adventure is a pixelart game mixing arcade gameplay, exploration, resource management and puzzles, it is all about the rescue of a civilization collecting master processors. If you enjoyed this game, see our list of games similar to Nihariely’s Spatial Adventure.