Games like IdleSpace 2
IdleSpace 2. These games share the most with it, and each one says why.
IdleSpaceDormant
Also space, combat, automation
A space combat idle game where you design ships and send fleets into automated battles.

Transport Defender
Also automation, combat, space
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, automation, combat
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
Unnamed Space Idle
Also space, combat
A ship, a sector map and a tidy prestige loop. Quietly one of Galaxy's most-played games.
92% steam4.5★ galaxy70% idle
Astro Prospector Prologue
Also space, combat
A bullet-heaven incremental where you mine coffee asteroids, fight SpaceCorp and upgrade your ship. This build is an early prologue.
4.6★ galaxy
ULTRATAPUpdated
Also combat, automation
Fight through stages of monsters and bosses, completing quests and equipping items while hundreds of upgrades automate the grind.
89% steam4.2★ galaxy
Dark Hunting Ground
Also combat, automation
A minimalist pixel action RPG about loot and builds, where farming shifts from hands-on to automated as you descend into the Void.
95% steam
PROFITS 2167: Planetary Resource Optimization & Freight Infrastructure Technician Simulator
Also space, automation
Drive a mining train by hand between stations, defend against alien insects and reinvest profits into upgrades and delivery drones, satirizing tech startups.
98% steamhas ending25% idle
SporbsUpdated
Also space, automation
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
Vanguard Galaxy
Also space, combat
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, automation
Lay out flat conveyor lines for mining, smelting and research, then build warships to take other planets.
87% steam70% idleTrimpsDormant
Also combat, automation
Breed an army of trimps, push through zones, portal back, and optimise your heirlooms for another hundred runs.
55% idle
SPACE / MECH / PILOT
Also space, combat
Pilot a mech through space, defeating foes for XP and bigger numbers in a tongue-in-cheek idle RPG clicker.
85% steam
Orebital DynamicsUpdated
Also space, automation
Run a deep-space mining platform whose drills fire lasers at lanes of ore, upgrading and automating while hazards reshape the field.
3.5★ galaxy
Space Loop Protocol
Also space, automation
Trapped in a time loop aboard a research ship, train five stats each cycle before the oxygen runs out, then queue activities.
3.4★ galaxy
Code: Terraform
Also automation, 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
Karma KeepersUpdated
Also automation, combat
Restore lost souls into Keepers, assign jobs to run a Faith economy, fend off corruption and demons, and rebirth to climb Karma tiers.
2.0★ galaxy
Incremental Adventures
Also automation, combat
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
Lazy Galaxy
Also space, combat
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, combat
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
Starvester
Also space, automation
Send drone swarms to mine a star system and grow a factory that builds megastructures, with prestige along a roughly five hour campaign.
69% steamhas ending25% idle
Idle Dot Shooter!Updated
Also combat, space
A minimalist shooter where a turret fires on its own at drifting dots while you buy defence, drone, and economy upgrades and push into tougher galaxies.

Age of Clicks
Also combat, automation
A clicker take on grand strategy: build factories and armies, invade neighbors and paint the world map in your colors.
67% steam
How To Grow a Black Hole
Also space, automation
Feed a black hole to gain mass, research automation and avoid collapses, comparing its size against real objects and global leaderboards.
67% steam