Here is the full list of all 100 1x! Space Adventure achievements.
Killed secret boss!
Entered secret stage!
Die for the first time
Reached 180000!
Reached 178000!
Reached 176000!
Reached 168000!
Reached 170000!
Reached 172000!
Reached 174000!
Reached 166000!
Reached 162000!
Reached 164000!
Reached 160000!
Reached 158000!
Reached 138000!
Reached 140000!
Reached 142000!
Reached 144000!
Reached 146000!
Reached 148000!
Reached 150000!
Reached 152000!
Reached 154000!
Reached 156000!
Reached 136000!
Reached 134000!
Reached 132000!
Reached 130000!
Reached 126000!
Reached 128000!
Reached 124000!
Reached 122000!
Reached 108000!
Reached 110000!
Reached 112000!
Reached 114000!
Reached 116000!
Reached 118000!
Reached 120000!
Reached 106000!
Reached 104000!
Reached 102000!
Reached 100000!
Reached 98000!
Reached 92000!
Reached 94000!
Reached 96000!
Reached 90000!
Reached 88000!
Reached 86000!
Reached 80000!
Reached 82000!
Reached 84000!
Reached 78000!
Reached 76000!
Reached 74000!
Reached 72000!
Reached 70000!
Killed third boss!
Loop the game!
Reached 56000!
Reached 58000!
Reached 60000!
Reached 62000!
Reached 64000!
Reached 66000!
Reached 68000!
Reached 54000!
Reached 52000!
Reached 50000!
Reached 48000!
Reached 44000!
Reached 46000!
Reached 42000!
Reached 40000!
Killed second boss!
Reached 30000!
Reached 32000!
Reached 34000!
Reached 36000!
Reached 38000!
Reached 28000!
Reached 26000!
Reached 24000!
Reached 22000!
Reached 20000!
Reached 18000!
Reached 16000!
Killed first boss!
Reached 10000!
Reached 12000!
Reached 14000!
Reached 4000!
Reached 6000!
Reached 8000!
Reached 2000!
Started new game!
Clicked "How to play" button
Clicked "Credits" button