Here is the full list of all 69 Idle Expanse achievements.
Unlocked new planets!
Achieved 100 credits per minute
Leveled a merc to level 5
Time to go AFK!
1K credits earned
Unlocked the home base defense lazer
That tutorial is way too long!
Unlocked a new planet!
Let the adventure begin!
Which reality is best?
It's like New Game+ right?
1M credits earned
1B credits earned
1T credits earned
Achieved 1000 credits per minute
Purchased 100 weapons
Purchased 1000 weapons
Purchased 100 pieces of gear
Purchased 1000 pieces of gear
Hired 25 mercs
Hired 100 mercs
Reached maximum merc level of 30
Killed 1k enemies
Killed 10k enemies
Killed 100 bosses
Killed 1k bosses
Logged 100 hours of gameplay
Completed 100 contracts
Completed 1k contracts
Zapped 1k AstroRabbits(TM)
Collected 100 time crystals from the chroniton collector dish
Logged 1k hours of gameplay
Clicked 1k EXP clickables
10 inversion points earned
100 inversion points earned
1k inversion points earned
10k inversion points earned
Leveled a merc to level 10
Leveled a merc to level 15
Leveled a merc to level 20
Unlock all other achievements