Single-player games like Plankton
Below are 15 single-player Steam games similar to Plankton, 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 Plankton page.
Ranked picks
- 1
PolyPine
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A forest simulator where you grow trees and create habitats for animals, plants and insects. Click on animals to make them poop, hunt, dig, cut and twerk! Start with a few basic seeds and attempt to grow a thriving ecosystem.
- 2
Particul
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
Click to mine particles and watch your pile grow. Turn resources into profit, automate extraction, research new technologies and trade. Can you mine the rarest particle and ascend? There is just one way to find out.
- 3
Tingus Goose
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
Tingus Goose is a delightfully absurd idle game where you plant seeds in patients, bounce babies for profit, and ascend through surreal worlds toward riches.
- 4
Cornerpond
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A chill idle-fishing desktop toy in the corner of your screen. Buy upgrades, catch rare fish, and customize your avatar at your own pace!
- 5
Black Hole Fishing
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
Black Hole Fishing is an absurd incremental game about catching, breeding, and perfecting SO MANY fish. Catch a fish, optimize its traits, then stock your pond with it as you pour fish and science into an endless singularity!
- 6
Osmos
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Casual with Plankton.
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to those who wait.
- 7
Profit Sea Incremental
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Casual with Plankton.
A short incremental game about fishing, earning gold, and unlocking powerful upgrades to dominate the waters.
- 8
Bird
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
You are a bird, you are free in this small place, but you can't get out, all you can do is fly around.
- 9
Jellyfish
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A simulation game about the life story of a jellyfish. In this game, I will present the full life cycle of a jellyfish: from an egg to a hydra and finally, after a not very long journey it becomes an adult jellyfish. A work of interactive art to bring the most beautiful of sea creatures to your screen.
- 10
Black Hole Simulator
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A simple black hole simulator.
- 11
Tree Bonsai
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
An artistic bonsai tree simulation game that follows the life cycle of a plum tree. You can cut branches, add nutrients, and graft while the seasons pass and your tree grows. You can finally fulfill your dreams of a digital bonsai.
- 12
Flower Design
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A flower arrangement sandbox game. The shapes and colors are freely adjustable and there is a garden where you can build a house and put flowers in.
- 13
Atom
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A simple hydrogen atom simulator.
- 14
I Am a Rock
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A rock's solar system odyssey.
- 15
Yin Yang Space
Single-player alternative to Plankton — playable solo, no multiplayer required. Shares Indie and Simulation with Plankton.
A sandbox FPS game, you can build gardens in the most intuitive and simple way and play with robots.