Free games like Reactor Critical
Below are 9 free-to-play Steam games similar to Reactor Critical, 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 Reactor Critical page.
Ranked picks
- 1
The Expendabros
Free-to-play alternative to Reactor Critical — no purchase or trial window.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 2
The Lab
Free-to-play alternative to Reactor Critical — 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!
- 3
Landfall Archives
Free-to-play alternative to Reactor Critical — no purchase or trial window. Shares Strategy with Reactor Critical.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 4
Control, I'm Not Coming Back
Free-to-play alternative to Reactor Critical — no purchase or trial window.
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.
- 5
Die in the Dungeon: Origins
Free-to-play alternative to Reactor Critical — no purchase or trial window. Shares Strategy with Reactor Critical.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 6
NERTS! Online
Free-to-play alternative to Reactor Critical — no purchase or trial window.
NERTS! Online is a fast-paced competitive solitaire game for you and up to five of your friends, played the same way we play it at the Zachtronics office!
- 7
South Scrimshaw, Part One
Free-to-play alternative to Reactor Critical — no purchase or trial window.
South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.
- 8
Waves
Free-to-play alternative to Reactor Critical — no purchase or trial window.
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!
- 9
Raifu Wars
Free-to-play alternative to Reactor Critical — no purchase or trial window. Shares Strategy with Reactor Critical.
Strategize and battle for victory in this cute multiplayer turn-based strategy featuring bolt-action rifle girls!