Games like MOE Multi Orbital Engine

"Drifter" is a single-player Sci-Fi Simulation game with exceptional gameplay, set in a procedurally-generated galaxy of 100,000 light years. As a spaceship captain, engage in trading goods, pirate hunting, mining, or piracy, with an original soundtrack by Danny Baranowsky. It takes around 6 hours to complete game's main storyline.

Space RPG 3 is a casual yet engaging space-themed action RPG with an intriguing story and good mechanics. The game boasts advanced features, allowing players to trade, fight, and complete missions. However, it's important to note that this game is very buggy, and yet its replayability is one of its strengths. The game describes itself as providing an advanced space-themed role-playing experience, which is certainly true, though it may require patience to fully enjoy.

"Interstellaria is a single-player Science Fiction Real Time Strategy game with a good plot and fabulous gameplay. Manage your crew, customize your ship, and navigate through a dangerous galaxy filled with hostile aliens and anomalies. Enjoy its pretty visuals, great soundtrack, and the humor, but be prepared for lots of grinding and some bugs."

Cosmonautica is a single-player Science Fiction Simulation game with great gameplay, exceptional graphics, and a fantastic soundtrack. The game offers a humorous space trading and crew simulation experience in a procedurally generated galaxy, with diverse quests, pirate attacks, and unique crew members. However, it has issues with bugs that can affect gameplay.

Endless Sky is a 2D space trading and combat game inspired by the Escape Velocity series. Explore a vast galaxy filled with hundreds of star systems, planets, and alien species, while completing missions, trading goods, and upgrading your ship. With a strong focus on customization and open-ended gameplay, Endless Sky offers a rich and immersive space exploration experience. The game is free, open-source, and available on multiple platforms.

Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter! Destination Sol is a free-to-play hardcore space arcade/RPG. You start as a pilot of a small fighter ship on the edge of a star system, and you're free to explore the game world, land on planets, fight with enemies, upgr…

"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.

Astrox Imperium is a single-player space strategy game that lets you explore, gather resources, build space stations, and manage interstellar politics. Engage in real-time combat with AI-controlled ships while navigating a vast, procedurally generated universe. Experience an immersive narrative with multiple branching storylines based on player choices.

Objects in Space is a modempunk stealth space-trading game set in Apollo, a huge cluster of star systems dozens of lightyears away from earth. You are a lonesome ship's captain, buying and selling wares in order to keep your bucket of bolts afloat and stay one step ahead of pirates, organized criminals, corrupt governments and shady laws.

Galaxy on Fire 2™ Full HD is a space combat and exploration game with stunning graphics and detailed gameplay. The game features an open-world universe with multiple galaxies to explore, diverse alien races to interact with, and numerous missions to complete. As a space pilot, players must manage their spaceship, resources, and reputation to survive and thrive in a hostile galaxy.