No missable achievements (plus 16 unknown)
Sign in with Steam or Xbox to track your progress, and:
Start Universe Sandbox at least once
Rule over your universe for 60 seconds
Freeze the Earth by moving it farther from the Sun
Rule over your universe for 60 minutes
Crash the Earth into the Sun
Start Universe Sandbox 10^1 = 10 times
Finish five tutorials
Some will know from their childhood; some were not born yet
Result of millions of years of computation
Rule over your universe for 24 hours
Capture 100 screenshots
Start Universe Sandbox 10^2 = 100 times
Start Universe Sandbox 10^3 = 1000 times
Rule over your universe for 30.4 days
Start Universe Sandbox 10^4 = 10000 times
Rule over your universe for 12 months