Single-player games like Spermination
Below are 16 single-player Steam games similar to Spermination, 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 Spermination page.
Ranked picks
- 1

Trump and Virus
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
At the beginning of a disaster, those seemingly unimportant warnings will always be felt that this is not serious, such as the invasion of viruses.
- 2

Spermination: Cream of the Crop
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
You may have beaten off others and came first a thousand times, but you've never tasted the sweet Cream of the Crop. This sequel is harder, faster and will blow your crusty socks off! Choose from 3 difficult leagues: Hand, Mouth and the coveted Cream Pie! Crack the egg & unlock your bundle of joy!
- 3

Bike Rush
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Express yourself as a king of the road. Leave the pursuers behind and avenge your syndicate in Bike Rush! You have an extra option to race in VR!
- 4

Project CARS
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Racing with Spermination.
THE ULTIMATE DRIVER JOURNEY delivers the soul of motor racing in the world’s most beautiful, authentic, and technically-advanced racing game.
- 5

Hand Simulator
Single-player alternative to Spermination — playable solo, no multiplayer required.
There are many different levels where you can play with spinners, plunge into the subtleties of handling weapons, milk a cow, take part in a Mexican duel with your friends, have a good time fishing, play chess or simply chat in an anonymous club.
- 6

Cart Racer
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Get a new gaming experience as a racer in a shopping cart! Play for the brutal and steep Cart Racer. Overcome obstacles in the city, in the sea, in the ancient castle and the snowy mountains!
- 7

4089: Ghost Within
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Sneak & battle your way through a procedurally generated mothership in this stealth action RPG! Supports user content & the Oculus Rift!
- 8

Wild Animal Racing
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Wild Animal Racing is an exciting go-kart simulation game with a twist. Play as an elephant, a lion, a zebra, a giraffe, a rhino or a hippo! Play against the other animals or against a friend on the same PC with the split-screen mode! Or invite Steam friends in the multiplayer mode!
- 9

Starship Wars
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Destroy enemies, bosses and everything you see ahead!! Get crystals to buy better starships and get stronger. Have fun in three different game modes.
- 10

3089 -- Futuristic Action RPG
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
3089 is a futuristic, procedurally generated, open-world action role-playing game. All terrain, enemies, weapons, items, quests & more are uniquely generated. Will you obey your creator, the Overlord, or find your own path?
- 11

3079 -- Block Action RPG
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
3079 is a futuristic, open-world action first-person role playing game. All areas, buildings, items, quests and characters are randomly generated. You will find unique lands & challenges. I hope you enjoy it!
- 12

5089: The Action RPG
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
5089 is a deep & complex action RPG featuring strong sandbox roots. VR is supported, but not required. Watch the tutorial & VR videos next to the trailer! Everything is procedurally generated, like terrain, enemies, weapons, items & quests. Planet Xax's war rages on... how is that possible?
- 13

Frantic Freighter
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Indie with Spermination.
THIS GAME IS OPTIMIZED FOR VR*, BUT DOES NOT REQUIRE IT. Frantically attempt a delivery across space in a freighter. Unfortunately, your ship is constantly falling apart. Trade spare parts, find stashes & evade pirates along the way. Succeed to unlock challenges!
- 14

StratoBash
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Be a contestant on StratoBash! Race up the floating islands along the stratosphere, bashing off Eyeoids, solving puzzles & more to score. Use VR controllers to throw Bashers, or play with a mouse & keyboard.
- 15

ROMBIE
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
Modular robotics & a Central Command was suppose to usher in prosperity, yet something went terribly wrong... ROMBIEs now scour the artificial wasteland for credits, modules & purpose. You, the Elite Recovery, spawned after a routine check on society started to fail...
- 16

Adapt or Perish
Single-player alternative to Spermination — playable solo, no multiplayer required. Shares Action and Indie with Spermination.
This is more than just an odd looking strategy game, it is a strategy platform. Genetically engineer amorphic creatures & buildings, in real time, in an endlessly open world that adapts to your playstyle. Share, and even battle your designs. How much will they be worth?