Card Enthusiast
Collect 30 unique cards. If u wanna trade I got some spare Amarok cards!
Rare9.40%last reported global rate
Steam
IdleOn - The Incremental MMO Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements276
Rarest rate0.300%
Ultra rare16
Last checkedSep 17, 2026
Delayed official data
Rates and award counts were last observed on Sep 17, 2026.
Copper 'Quipment
Equip the Copper Helmet and Copper Platebody
Rare9.40%last reported global rate
Boss Buster
Defeat the big poop and the giant house with legs!
Rare9.50%last reported global rate
Hybernation
Leave one of your players AFK for an entire week, which is 168 hours! Anything more counts too!
Rare9.70%last reported global rate
Large Fortune
100,000,000 copper coins worth, that's enough to buy 3.8 million hot dogs!
Rare9.90%last reported global rate
Veteran Gamer
You're easily in the top 5% now, that's something to be proud of maybe kind of!
Rare11.3%last reported global rate
Tree Top Dropout
Reach the top of the Giant Tree, then jump off... wait no don't do that last part.
Rare11.6%last reported global rate
Lucky 7s
No public description is available.
Rare11.7%last reported global rate
Shut it Poochy
Defeat Amarok, the stone golem wolf of the Encroaching Forest.
Rare12.3%last reported global rate
Anvil Expansion
Craft the Anvil II expander. More things to craft, yay!
Rare12.8%last reported global rate
Glublins Defeated
Defeat enough Glublins to unlock the portal to THE BOSS!
Rare14.8%last reported global rate
Carrotmen Defeated
Defeat enough Carrotmen to unlock the portal to GLUBLINS!
Rare15.7%last reported global rate
Elite Player
You've done better than most of my IRL friends who totally exist and aren't made up!
Rare15.8%last reported global rate
Card Collector
Collect 10 unique cards. Who knows you may even get a Baba Yaga Rookie Card!
Rare16.6%last reported global rate
Retirement Fund
1,000,000 copper coins worth, that's enough to buy almost 91,000 rolls of Cue Tape!
Rare16.6%last reported global rate
Crystal Beatdown
Defeat your first Crystal Monster! These have a 1 in 2000 chance to spawn each time you defeat a normal monster.
Rare17.0%last reported global rate
Baby Boas Defeated
Defeat enough Baby Boas to unlock the portal to CARROTMEN!
Rare17.1%last reported global rate
More and More Me!
Create your 4th character, who will never appreciate the struggle the earlier characters went through from having no family bonus stats.
Rare17.6%last reported global rate
Pro Gamer Move
No public description is available.
Rare18.4%last reported global rate
Part 3: Learn to Translate
Complete Stiltzcho's part of the Main Questline
Rare19.0%last reported global rate