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

Space Colonizers Idle ClickerUpdated
Also space, planet, exploration
Upgrade a spacecraft to find new planets for humanity, using black holes as shortcuts and meeting alien species along the way.
45% steam
To The Core
Also space, planet
Fly between planets, drill for resources until fuel runs out, and buy upgrades so each dig reaches deeper than the last.
93% steam
The Greenening
Also exploration, planet
Water an ash-covered planet to reveal what lies beneath, upgrade your abilities, and tend a garden aboard your spaceship in about three hours.
96% steam50% idle
Human-powered spacecraft
Also humor, 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
Tumbleweed Destiny
Also humor, exploration
Roll a tumbleweed through the desert, breaking cacti for points to spend on abilities, solo or with up to 16 players online.
95% steam
Vanguard Galaxy
Also space, exploration
Fight, mine, salvage and trade across a procedural galaxy, played full screen or docked on your desktop with an autopilot that can run things.
90% steam50% idle
Space industrial empire
Also space, planet
Lay out flat conveyor lines for mining, smelting and research, then build warships to take other planets.
87% steam70% idle
SPACE / MECH / PILOT
Also space, humor
Pilot a mech through space, defeating foes for XP and bigger numbers in a tongue-in-cheek idle RPG clicker.
85% steam
Vacuum Warrior - Idle Game
Also humor, exploration
Suck up dust with upgraded vacuums and robot helpers, sell it, hire managers and prestige to multiply gains across several locations.
82% steam
Code: Terraform
Also planet, space
Write Python-like scripts to run rovers, power grids, smelters and drone fleets on a frozen alien world, with your code working while you plan.
83% steam
Lazy Galaxy
Also space, humor
Lead a lazy alien race: grow your base idly and either take direct control in RTS battles or let the ships fight alone. Achievements unlock permanent research.
80% steam50% idle
Lazy Galaxy 2
Also space, humor
Command a lazy alien race conquering galaxies through base building and fleet battles, turning combat experience into candy. Battles can be micromanaged or left to run.
80% steam50% idle
SporbsUpdated
Also space, planet
Hover over alien organisms to harvest them without clicking, feed a fuel factory, and work through a 170-node skill tree toward a ride home.
77% steam4.1★ galaxyhas ending
Planet No MoreComing soon
Also space, planet
Bombard 3D planets until they crumble, sweep up the debris before fuel runs out, and destroy each core to unlock the next body.
3.9★ galaxy![rock[et] cover art](/art/rock-et.webp)
rock[et]Coming soon
Also space, planet
Break asteroids for minerals after crash-landing on an alien world, picking from a cast of characters with unique skills to build runs and repair your ship.
3.2★ galaxyhas ending
NG Space Company
Also space, exploration
A space incremental about mining resources, exploring between stars and conquering systems.
4.2★ galaxy
Space Travel Idle
Also space, exploration
Fly from Earth to distant moons and stars, researching engine tech, cutting ship weight and settling each world, with light card battles.
63% steam70% idle
Vostok Inc.
Also space, humor
A twin-stick shooter where blasting asteroids and enemies funds mines and businesses on 40+ planets that keep paying out, plus managers and retro minigames.
61% steam
Hamstronaut
Also space, humor
Spin a hamster's wheel for power, sell it, and build a rocket to fly him to a moon he thinks is cheese. A family-made jam game.
4.2★ galaxy
Planetidal
Also space, planet
An idle game about planets, universes, and realities, growing numbers to enormous size.
3.6★ galaxy
Void SalvageUpdated
Also space, exploration
An FTL-like ship sim with pick-one-of-three rewards and choice encounters, where you combine SYSTEM parts and fit SOCKET INSERTs.
3.1★ galaxy
MassDormant
Also space, planet
Generate mass and spend it on increasingly expensive planets to build out a solar system.
Solar ColonyUpdated
Also space, planet
Click to launch payloads from the Moon's mass driver, timing the orbit to reach Mars, Venus or Mercury and slowly colonize the inner solar system.

TerraGenesis - Space SettlersUpdated
Also planet, space
Terraform real and fictional planets using NASA data, building habitats and choosing among four factions.