Games like Galaxy Idle Clicker
Galaxy Idle Clicker leans idle, stacks 4 prestige layers. These games share the most with it, and each one says why.

Cookie Clicker
Also clicker, prestige, minigames · Same active/idle balance (leans idle)
The grandma of the genre, literally. Click a cookie, buy grandmas, ascend, and discover the game is much stranger than it looks.
96% steam70% idle
Clicker Heroes
Also clicker, prestige · 2 prestige layers
Click monsters, hire heroes, ascend, transcend. The game that made idle RPGs mainstream on Steam.
90% steam60% idle
Unnamed Space Idle
Also space, prestige · Same active/idle balance (leans idle)
A ship, a sector map and a tidy prestige loop. Quietly one of Galaxy's most-played games.
92% steam4.5★ galaxy70% idle
Idle FishingUpdated
Also prestige, minigames · Same active/idle balance (leans idle)
A crew fishes for you while you are away, and you hire crewmates, raise pets, and cycle through ascension and rebirth resets, plus a separate excavation mode.
83% steam75% idle
Coin Flipper
Also clicker, prestige · Same active/idle balance (leans idle)
Pick heads or tails and flip coins for currency, buying upgrades until the flipping runs on its own. Past a million coins you can inflate for permanent bonuses.
89% steam70% idle
Transport Defender
Also prestige, space · Same active/idle balance (leans idle)
Guard a cargo ship from boarding waves with a turret and auto weapons, scripting auto upgrades and auto ascension for long idle runs.
80% steam70% idle
Idle Space Raider
Also space, prestige · Same active/idle balance (leans idle)
Patrol space as a station guard, mining ore and fighting in raids, then upgrade your ship and station. Toggles automate most systems, and a stargate opens a second reset tier.
74% steam70% idle
Stardust TycoonUpdated
Also space, clicker, prestige
Mine stardust by clicking, buy auto-miners from drones to black holes, and prestige for a permanent production bonus.

Idle Island - City TycoonDormant
Also clicker, prestige · Same active/idle balance (leans idle)
Build a city on a private island, adding homes, shops and factories, with offline cash and a prestige reset.
75% idle
Idle Space Farmer ManagerDormant
Also space, prestige · Same active/idle balance (leans idle)
Run an anime-styled space farm, recruiting agents from gacha pulls to fight monsters and upgrading ships across planets with prestige.
75% idle
Kiwi Clicker - Juiced Up
Also clicker, prestige
Push kiwis through an upgradable delivery line, clear bottlenecks, and pick professions that favor clicking, potions or automation.
95% steam50% idle
Pincremental
Also prestige, minigames · 5 prestige layers
Play a real pinball table and cash out scores for upgrades that gradually automate flippers, upgrades and the automation itself.
76% steam
Time Clickers
Also clicker, prestige
Shoot cubes for gold, upgrade your pistol and hire a sharpshooter squad, then trade Time Cubes for artifacts after wave 100.
88% steam50% idle
PickCrafter
Also clicker, prestige
Break blocks with a growing arsenal of pickaxes, forge gear, and prestige through ascension tiers while exploring biomes up to Mars.
86% steam50% idle
Universe Horizon
Also space, minigames
Fly a small ship outward from Earth, collecting resources from each body you pass and upgrading speed past light, across 16+ upgrade tabs, skill trees, and challenges.
94% steam50% idle
The Point Tree
Also prestige, minigames · 12 prestige layers
A Prestige Tree mod about piling up points across 12 layers with short waits, plus an optional long achievement minigame and a luck-based side layer.
4.0★ galaxy
Human-powered spacecraft
Also clicker, space
A stranded colonist cranks a dynamo by hand to repower a ship, upgrading toward potato farms and antimatter with a sarcastic computer.
93% steam
Grim Clicker
Also clicker, prestige
A dark fantasy clicker RPG with an immortal hero, a big skill tree, item enchanting, and a ritual reset that makes each run stronger.
79% steam50% idle
Tiny Aquarium: Social Fishkeeping
Also minigames · Same active/idle balance (leans idle)
Raise and breed fish in a small tank that can sit on your desktop, keep growing while you are offline, and be shared with friends for visits and trades.
97% steam75% idle
Scratch Inc.Updated
Also prestige, clicker
Scratch cards for points, upgrade grids and multipliers, automate the scratching and prestige through several layers across industries.
90% steam
The Adventure of NAYU
Also clicker · Same active/idle balance (leans idle)
Click to help a fox and her party fight through a gentle, short story, spending star shards on training and costumes, with an endless mode afterward.
95% steamhas ending75% idle
Scream Collector
Also clicker, minigames
Grow a Halloween haunted house one room at a time, clicking for screams and unlocking secret minigames as it expands.
88% steam
Incremental InfinityUpdated
Also prestige, clicker · 3 prestige layers
A Scratch-born number game with three prestige layers and part of a fourth, built around reaching a black hole at the end.
58% steam2.9★ galaxyhas ending
Incremental Adventures
Also prestige · Same active/idle balance (leans idle) · 3 prestige layers
Heroes fight on their own in automated turn-based combat while you tune the automation and push toward double-exponent numbers through stacked prestiges.
78% steam70% idle