Biology incremental games
21 hand-tagged games, ranked by live Steam and Galaxy ratings.

BIOTOMATA
Grow a living machine cell by cell. Currently the top-rated game on Galaxy.
4.7★ galaxy
Bugtopia
Raise and breed over 300 real-world insect species in terrariums you landscape yourself, with breeding boxes that can produce rare new bugs.
92% steam
Black Hole FishingUpdated
Use a black hole to vacuum fish from a pond, then breed, inject traits into and research them while feeding the singularity to grow it.
89% steam
The Fly Devourer Tree
Evolve a creature built to eat as many flies as possible, progressing through nine layers so far.
4.3★ galaxy
Simultree
Run simulations of small creatures that eat fruit and reproduce, then use the results to climb a tech tree of new entities, items and foods.
86% steam3.7★ galaxy
Tree Bonsai
Shape a plum bonsai by pruning, feeding, and grafting as it grows on its own through the seasons, blossoming, fruiting, and eventually aging and dying.
81% steam
Karyofox
A fox-themed incremental built on genetics, with level 100 as its endgame.
4.0★ galaxyhas ending
Plague Tree (Vorona Cirus Treesease)
Spread a virus to as many cases as you can, unlocking new layers that push its reach and strength far past anything realistic.
3.7★ galaxy
Zero IDLE
Chase huge numbers by clicking or automation, then prestige, evolve DNA, synthesize nucleotides and grow a destiny tree.
70% steam
FEED THE QUEENUpdated
Grow an insect-like colony by breeding specialized workers and combining foods, evolving the species via a genetics talent tree.
69% steam
Koltera
Mine and train with creatures that each carry genetics, breed them toward perfect stats, trade for rarer species, and grow a garden that summons legendaries.
69% steam
Into the Planet’s FleshUpdated
Hatch parasites and spread a grotesque colony through a planet that resists you, with buildings and prestige upgrades. The demo has an ending.
3.3★ galaxyhas endingMycelia (共生之网)Updated
A fungal-network incremental where you design a 2D mycelium graph instead of a production list, with tech, automation, challenges and prestige.

MyceliumUpdated
Spread a fungal network through forest soil, weighing nearby poor ground against distant rich deposits since resources must travel back to the core.

Idle HumanUpdated
Build a human body starting from one cell, adding bones, organs, nerves and muscles along the way.

Cell to Singularity: EvolutionUpdated
Click through the history of life from primordial soup to technology, climbing a science tech tree.

Idle Animals!Dormant
Build animals from the first cell outward, generating bones, organs, nerves, muscles, and fur to learn anatomy along the way.

Idle evolution: Life on EarthUpdated
Guide life from the ancient seas to human culture while learning about prehistoric creatures along the way.

Human Evolution - Idle ClickerDormant
Tap to drive life from single cells through fish, apes and humans to cyborgs and beyond, then seed evolution on other planets.
25% idle
Neon Electrogenesis
Excite electrons into atoms and build up six elements until you have enough atoms for one cell. A jam game with no text at all.
2.5★ galaxyhas ending
Intelligent Design: An Evolutionary Sandbox
Seed a world with plants, herbivores, and carnivores whose genes mutate each generation, then leave it running and return to see what evolved or died out.
45% steam90% idle