Games like Atomic Star
Atomic Star. These games share the most with it, and each one says why.

The Galactic Tree
Also tree, space
A space-themed Prestige Tree mod with around ten hours of layered progression, hidden secrets, and content that continues past its end into Infinity.
4.2★ galaxy
NG Space Company
Also incremental, space
A space incremental about mining resources, exploring between stars and conquering systems.
4.2★ galaxy
4.1★ galaxy
Prestige Tree - Classic
Also incremental, tree
The original version of the Prestige Tree, where you climb a tree of prestige layers.
4.3★ galaxy
Yet Another Challenge Tree: Adventure
Also incremental, tree
Complete a series of challenges to build Challenge Power and find your way home from the Challenge World.
4.2★ galaxy
NG+Tree
Also incremental, tree
A Prestige Tree variant where you can adjust the difficulty and content of the tree.
4.0★ galaxy
my very good tree
Also incremental, tree
A parody of generic Modding Tree mods and NG-minus modes, with pacing modes and many twists.
3.9★ galaxy
The Ascension Tree
Also incremental, tree
An April Fools game whose prestige layers are procedurally generated on a binary tree.
3.8★ galaxy
The Camellia Tree: duducat's Extremely Novel and (Almost) Completely Overhauled "I wanna be the Kamiller" Rewrite/Modification
Also incremental, tree
A Modding Tree rewrite themed around rhythm game music, best played on desktop.
3.8★ galaxy
Stellar Lumen LEGACY
Also incremental, space
The reinstated legacy build of a 2023 incremental mod, kept around with occasional fixes.
3.8★ galaxy
Black Hole Shrinker
Also incremental, space
Shrink a black hole through Hawking radiation to collect quarks.
3.7★ galaxy
The MJ Tree REWRITTEN v0.5
Also tree, incremental
An in-progress tree-style incremental, modeled on another Galaxy game.
3.7★ galaxy
The Incremental TreeUpdated
Also incremental, tree
An early Modding Tree mod that packs several smaller incremental games inside one prestige tree.
3.6★ galaxy
The Limitless Journey
Also space, incremental
Start with a single cursor and push your point count toward 1e200 as you travel across a vast universe.
3.6★ galaxyhas ending
The Generic Tree
Also tree, incremental
A deliberately plain prestige tree mod with challenge content.
3.6★ galaxy
3.6★ galaxy
NG+ infinite: LEGACY
Also incremental, tree
A legacy Modding Tree take on Antimatter Dimensions NG modes, unlocking new mechanics from nothing.
3.5★ galaxy
Le Boring Tree (TMT mod)
Also incremental, tree
A medium-length Modding Tree mod with possible bugs and timewalls.
3.5★ galaxy
Dark Forest VillageDormant
Also incremental, space
Grow and defend a village against hostile outside forces, with the long-term aim of leaving for the stars.
3.5★ galaxy
The Upgrading Tree
Also incremental, tree
A hard, strategy-heavy tree incremental spread across multiple universes, with puzzles in unlocking upgrades.
3.4★ galaxy
The Rebirth Tree
Also incremental, tree
A rebirth-focused tree that takes 5 to 12 hours with almost no waiting.
3.4★ galaxy25% idle
Cosmic CollectionDormant
Also incremental, space
Poke a black hole to pull collectible cards, chasing rare finds and unlocking fun facts along the way.
3.4★ galaxy
3.3★ galaxy
The J Tree: Replanted
Also incremental, tree
A remake of The J Tree, a Modding Tree incremental still receiving updates.
3.3★ galaxy