Single-player games like Gridworld
Below are 13 single-player Steam games similar to Gridworld, 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 Gridworld page.
Ranked picks
- 1
Intelligent Design: An Evolutionary Sandbox
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
A toy ecosystem with fully simulated genetics and evolution. Will you tinker with DNA or sit back, relax, and see if life finds a way?
- 2
Rat Overflow
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
Rat Overflow is an adorable rat breeding simulator about genetics, glory, and having way too many rats. Develop your show winner bloodlines and breed thousands of unique rat coats!
- 3
Tank of the Fittest
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
Tank of the Fittest is a dark aquarium roguelite. Twist heat, pH, oxygen, and pollution to cull the weak, trigger new traits and evolutions, set off chains of devouring, and forge one apex specimen powerful enough to turn the tank against itself.
- 4
Substrate: Emergence
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
Grow colonies of fluorescent cells that mutate, swarm, and devour each other in a petri dish arena. Propagate a unique biology of your own as you compete against rival labs in a detailed artificial life simulation.
- 5
PHYSARUM: Slime Mold Simulator
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
PHYSARUM is a sandbox simulation game. Simulate the real world slime mold Physarum polycephalum by generating millions of living particles. Create and mutate slime species in real time to discover countless mesmerizing and emergent patterns.
- 6
Woodland Empire
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
Woodland Empire is an anti-citybuilder; a natural take on the typical city building game. Instead of building roads and power lines, you'll control the wind, rain and sunlight to help your forest grow. Employ the help of woodland creatures to manage, upgrade and grow your empire.
- 7
IDLE Animal Anatomy
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
A colorful clicker simulator where you can yourself grow a living creature cell by cell! Watch how organs, bones and skin are growing! Feel like a real scientist by becoming a pet creator!
- 8
Atoms and Time
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
Survive, evolve, and adapt in a rapidly changing world. Survive the test of time, and become an integral part of your world's biosphere. Or play God and build a full ecosystem in seconds.
- 9
Shallow Space
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
Construct your Taskforce and lead your forces to domination in the ultimate Fleet Warfare RTS!
- 10
The Elder Scrolls V: Skyrim
Single-player alternative to Gridworld — playable solo, no multiplayer required.
EPIC FANTASY REBORN The next chapter in the highly anticipated Elder Scrolls saga arrives from the makers of the 2006 and 2008 Games of the Year, Bethesda Game Studios. Skyrim reimagines and revolutionizes the open-world fantasy epic, bringing to life a complete virtual world open for you to explore any way you choose.
- 11
Species: Artificial Life, Real Evolution
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Simulation with Gridworld.
Play with evolution! Species: ALRE is a scientifically-grounded, emergent simulation of natural selection. Creatures evolve and speciate in response to in-game mutation and selection forces, allowing you to experience and tinker with evolution in real-time.
- 12
Ecosystem
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
Create virtual lifeforms whose development is shaped by a deep simulation of evolution. Guide them as they fight, mate, and adapt to the environment you have built. All the creatures in the trailer evolved on their own in the game!
- 13
The Bibites: Digital Life
Single-player alternative to Gridworld — playable solo, no multiplayer required. Shares Indie and Simulation with Gridworld.
Explore real digital life in The Bibites! Play god by guiding your bibites on their evolutionary journey or engineer your own. Analyze their Neural Network brains and genetic information as they adapt to their environments. Save your favorites and test their strength in Challenge Mode!