Games like Space Station 51

NEW GAME JUST RELEASED JAN/2019! OFFICIAL TRAILER (early alpha version) A NEW KIND OF FRANTIC SHOOTER ACTION! We're crafting THE  first-of-its-kind INTENSE shooter experience that guarantees non-stop, never-take-your-finger-off-the-trigger action.  How do we do it? How is this different from all the other FPS games? Very small maps (arenas). Imagine this: Throw two teams of heavily armed figh…

Fractured Space is a 5-v-5 team-based Science Fiction Shooter game with fantastic mechanics and perfect graphics. Players control massive capital ships to capture mines, bases, and ultimately the enemy team's home in multiplayer or co-op single-player modes. However, the game can be very grinding and buggy at times. The game's description states that it combines the intensity of a shooter with deep tactical decision making across five sectors.

"Wickland is an indie arena shooter that combines classic FPS gameplay with fantasy elements, allowing players to morph into different beasts with unique abilities. The objective is to defeat opponents by killing their beasts in 1vs1 or FFA Deathmatch modes, across six themed arena maps. With community-supported tournaments, offline practice against bots, and spectator mode, Wickland offers a complete package for PC gamers."

"Days of War is a fast-paced, competitive first-person shooter set in World War 2 with non-stop combat in 32-player multiplayer matches or offline against bots. Experience intense battles across 12 maps, including European, African, and Eastern front theaters. Customize your gameplay with the map editor and Steam Workshop support for creating and sharing custom maps."

Deep Space Battle Simulator is a real-time strategy game that allows players to design and command their own space fleets. Engage in large-scale battles with advanced AI, or compete against other players online. Customize your ships, research new technologies, and manage resources to gain the upper hand in the vastness of space.

Mutant Ops is a low poly co-op shooter. Go in alone or with friends and survive endless waves of mutants and monsters.

"TRAPPED is a action-packed game that can be played as a single-player or with upsets to 2 players in both co-op and PVP modes. In a post-apocalyptic world, players must work together to capture critical points and survive against mutant creatures and the army, who are determined to eradicate all. The game features robust mechanics and allows friends to join at any point through Steam."

"Earthfall is a Science Fiction Shooter game with single-player and multiplayer co-op modes for up to 4 players. Battle an extraterrestrial invasion in the Pacific Northwest using futuristic weaponry and deployable barricades. Experience tense, procedurally generated gameplay and a well-crafted story across 15 levels."

"Outbreak: The New Nightmare" is a survival horror game set in a city overrun by the undead. Players must scavenge for supplies, face off against zombies, and try to escape with their lives. The game features local co-op play for up to two players and high definition 3D graphics. It is a chilling love letter to classic 90s survival horror games.

Delta Force Land Warrior is a first-person shooter game that puts you in control of the US Army's elite anti-terrorist unit. The game features vast outdoor and indoor environments, and introduces new weapons and characters for single-player and multiplayer modes. It is developed from the same engine used to train US Army soldiers and offers online multiplayer battles with up to 50 players on NovaWorld, where you can rank yourself against enemies and allies.