1.0·Every feature free until Premium arrives in October
Stackflow achievements, rarest first.
Every achievement in Stackflow, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.
The rarest achievement
Yo Ho!
14%
of players
- Achievements
- 21
- Rarest
- 14%
- Ultra rare (under 5%)
- 0
- Average completion
- 43%
1
Yo Ho!
Discover all Pirate blocks.
14%
2
Are You Building a Castle?!
Discover all Fortress blocks.
16%
3
Certified TNT Enjoyer
Discover all Explosive blocks.
16%
4
Have You Ever Seen The Rain?
Stack blocks skyward until a single tower rises 18 high!
18%
5
Dr. Oppenblocker
Discover all Nuclear blocks.
22%
6
Beengo!
Discover all Colony blocks.
22%
7
Becoming Addicted...
Discover all Casino blocks.
24%
8
Beginner's Luck (Or Skill?)
Complete your first full run.
26%
9
I'm Rich!
Discover all Minerals blocks.
26%
10
World of Blocraft
Discover all Arcane blocks.
27%
11
Veteran
Survive to level 20.
30%
12
Lofi Enjoyer
Discover all Harmony blocks.
30%
13
Gotta Catch'em All!
Discover all Monster blocks.
32%
14
The Moai
Finish a level without rotating any Piece.
49%
15
Combo Legend
Score a 500,000 point combo.
56%
16
Combo Maestro
Score a 100,000 point combo.
69%
17
Getting the Hang of It
Survive to level 10.
69%
18
Block Legend
Place 500 pieces.
75%
19
The X
Get 100+ Multiplier on a single combo.
85%
20
Professional Stacker
Place 100 pieces.
94%
21
Block Placer
Place 50 pieces.
97%
Percentages are Steam's global unlock rates across all players who own Stackflow, refreshed daily. Under 5% is marked in the lit blue.