Free games like Slave Zero
Below are 8 free-to-play Steam games similar to Slave Zero, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Slave Zero page.
Ranked picks
- 1
Waves
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!
- 2
Warframe
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
- 3
Alien Swarm
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
Co-operative multiplayer game and complete code base available for free.
- 4
MechWarrior Online™ Legends
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
MechWarrior Online™ Legends is a tactical, 'Mech-based online shooter set in the vast BattleTech Universe. Assume the role of an elite MechWarrior, piloting powerful BattleMechs, fighting for supremacy over the Inner Sphere.
- 5
Baldi's Basics Classic Remastered
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
Escape Baldi's schoolhouse again in this new remastered version of Baldi's Basics Classic! Use stealth and strategy to collect all 7 notebooks and win! Featuring three games in one, gameplay improvements, a more authentic art style, accessibility improvements, and brand new ways to play!
- 6
AirMech
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!
- 7
You Have to Win the Game
Free-to-play alternative to Slave Zero — no purchase or trial window. Shares Action with Slave Zero.
You Have to Win the Game is a free exploration platformer with a retro 1980s PC aesthetic.
- 8
King's Quest
Free-to-play alternative to Slave Zero — no purchase or trial window.
King’s Quest is a collection of five different chapter releases, each focusing on an untold tale in Graham’s past. Discover a wondrous world full of whimsical characters, charming puzzles and perilous dangers in this fun and enchanting coming of age story.