Single-player games like AlCHeMoS
Below are 8 single-player Steam games similar to AlCHeMoS, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like AlCHeMoS page.
Ranked picks
- 1
DODECIUM
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
Solo Indie delivers a local 1-4 player split-screen physics-based create and combat sandbox with scientific tools for PvP or PvE. Replay many unique campaigns. Master your hex build strategy, microscopes, and chemistry skills. Be clever to achieve victory and learn as you go. June NEXT FEST.
- 2
Cyanide Space Girls
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
Join four elite C.A.T. pilots in explosive 4-player co-op action! Fly through procedurally generated galaxies, unlock devastating weapons, combos, and upgrades, and fight to rid the cosmos of an ancient alien scourge!
- 3
nanos world™
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
The next-generation open-world multiplayer sandbox. Play community-made game modes, create addons with Lua scripting, import custom assets from Unreal Engine 5, and host your own dedicated servers for hundreds of players!
- 4
Iron Apartment Guardian
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
This exciting TPS mecha action game is set in the future of Seoul, offering a unique experience that combines intense combat with strategic depth. Defend, destroy, and take over apartments with the cool robots you build!
- 5
Sherwood Extreme
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
A co-op Crossbow Shooter with Bullet-Time Parkour! Race through levels and horde mode, chaining combos of slow-mo sniping and destruction to climb the leaderboards. Build maps in the Level Editor.
- 6
Shrink Assault
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action and Indie with AlCHeMoS.
Shrink Assault is a Sci-Fi game featuring a mix of Infinite Runners and Rail Shooter games! Skilfully control your spaceship to dodge obstacles and eliminate the threat! Can you survive?
- 7
Red Faction Guerrilla Steam Edition
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action with AlCHeMoS.
Set 50 years after the climactic events of the original Red Faction, Red Faction: Guerrilla allows players to take the role of an insurgent fighter with the newly re-established Red Faction movement as they battle for liberation from the oppressive Earth Defense Force.
- 8
Just Cause™ 3
Single-player alternative to AlCHeMoS — playable solo, no multiplayer required. Shares Action with AlCHeMoS.
With over 1000 km² of complete freedom from sky to seabed, Rico Rodriguez returns to unleash chaos in the most creative and explosive ways imaginable.