Games like Sirenum

"Scavenger SV-4" is a first-person science fiction game where you explore a radioactive alien planet through a remote-controlled rover. Collect samples, research them, and enhance your rover to uncover the mysteries of the planet. Each playthrough offers a new planet and story, providing high replayability.

"BABBDI" is a first-person exploration game set in the abandoned town of BABBDI. Gather unique items, such as a baseball bat and motorcycle, to unlock special movement abilities and escape. Discover secret collectibles, interact with inhabitants, and enjoy the game's light narrative, all while avoiding combat in this immersive experience.

"Star Explorers" is a sandbox-style space exploration and survival game that allows players to mine asteroids, trade with alien races, and build their own space stations. The game features a procedurally generated galaxy, giving players a vast and unique universe to explore, complete with diverse environments, hidden treasures, and hostile encounters. Players must manage their resources, build and upgrade their spaceship, and navigate the challenges of space to survive and thrive.

Fying in your own spaceship. Walking on the surface of planets and moons. Lots of weapons and other equipment for both your ship and character. No companions. Only your character. 27 star systems with 88 celestial bodies to land on. Talking to NPCs. Main story line. Lots of repeating miniquests. Character creation. Simple leveling system with 6 skills. Earning hyperdollars…

After a galactic portal failure you find yourself lost millions of light years away from home, in a foreign galaxy... With your main propulsion systems disabled you are unable to traverse space, so you try to collect resources you find near you in order to create a galactic portal to return back. According to avionics, the part of the galaxy in which you landed is an inhabited zone called EXO-1 …

In "Starstruck Vagabond," a story-driven work/life simulator, players maintain a spaceship and deliver cargo between star systems. After awakening from a 2000-year sleep, the protagonist assembles a crew and becomes entangled in a conflict involving a ominous purple egg and two warring factions. With a Stardew Valley-inspired approach, players will forge relationships, manage their ship, and uncover new purposes in this unknown galaxy.

Stardiver is a sci-fi, single-player, action-adventure game where you pilot a ship, fight enemies, and slay Bosses. The game takes place entirely underwater.Stardiver will take you to an unknown world in which you’ll experience exciting fights, and discover new species and places. And you’ll take care of resources supply, crafting items in your base, and developing your own ship.

In "Lethal Company," you're a contractor for a mysterious Company, scavenging scrap from abandoned moons while managing crew safety and upgrading your ship. Expect danger, exploration, and interaction with alien creatures, while ensuring you meet the Company's profit quota. Use tools and coordinate with your crew to overcome challenges, especially during perilous nighttime encounters.

"Lifeless Planet" is a single-player mystery action-adventure game with an intriguing old-school sci-fi story and stunning visuals. As an astronaut searching for life on a distant planet, you discover an abandoned Russian town and evidence of past human life, leading to questions about time travel and Cold War hoaxes. Despite its impressive atmosphere, the game is plagued by bugs, lack of optimization, and grinding gameplay, with low replayability but high emotional impact.

Get ready for the adventure, put on your space suit and charge your jetpack!