Free games like SPACE INVADERS: Deck Commander
Below are 14 free-to-play Steam games similar to SPACE INVADERS: Deck Commander, 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 SPACE INVADERS: Deck Commander page.
Ranked picks
- 1

Ultimate Custom Night
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action and Indie with SPACE INVADERS: Deck Commander.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2

Indigo Park: Chapter 1
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action and Indie with SPACE INVADERS: Deck Commander.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 3

STRAFTAT
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action with SPACE INVADERS: Deck Commander.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 4

Counter-Strike:Global Offensive
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action with SPACE INVADERS: Deck Commander.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 5

The Expendabros
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action and Indie with SPACE INVADERS: Deck Commander.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 6

The Lab
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 7

Control, I'm Not Coming Back
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Indie with SPACE INVADERS: Deck Commander.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 8

OnlyCans: Thirst Date
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Indie with SPACE INVADERS: Deck Commander.
Feel The Fizz Inside You™ with the brand new Shize™ Collection!
- 9

Two Robots: Unleashed
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Action and Strategy with SPACE INVADERS: Deck Commander.
A competitive eSports card battler set in a sci-fi open world. Build custom robots, craft your deck, and brawl in 1v1 arenas. Meet and socialize with other operators in orbit or in battle!
- 10

Chrono CCG
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Strategy and Indie with SPACE INVADERS: Deck Commander.
Chrono CCG is an indie game from genre veterans where time-traveling agents battle for control of history. Timelines shift mid-match, agents evolve, and deep strategy meets accessible play. For the community, by the community.
- 11

Grid Tactics: Duel
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Strategy and Indie with SPACE INVADERS: Deck Commander.
Grid Tactics: Duel is a competitive card game built on an 8×8 grid. Every move is about positioning, timing, and resource trade-offs. With limited resources, choose when and where to play—set up or apply pressure. Each placement reshapes the board. Win through deckbuilding and precise execution.
- 12

Gear Slayer CCG
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Strategy with SPACE INVADERS: Deck Commander.
A free-to-play anime-style multiplayer trading card game set in the sci-fi fantasy world of Aurellia; featuring epic elemental combat and vast deck building.
- 13

Legend of Deck
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Strategy and Indie with SPACE INVADERS: Deck Commander.
A card and deck-building game where strategy is key! Face off against your friends or other players online in a heroic fantasy universe, build the perfect deck, and cast spectacular spells in intense duels.
- 14

Norectus: Theatre of War
Free-to-play alternative to SPACE INVADERS: Deck Commander — no purchase or trial window. Shares Strategy with SPACE INVADERS: Deck Commander.
A free-to-play strategy card game where five nations wage war. Build a deck around your Leader, then battle through ranked duels, a 100-floor roguelike, co-op bosses, and clan wars, plus Leader Clash, a full auto-battler mode built into the game.