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Arcanum Collegium achievements, rarest first.
Every achievement in Arcanum Collegium, ranked by how many Steam players have unlocked it. Global completion rates from Steam, refreshed daily.
The rarest achievement
The Complete Archive
0.0%
of players
- Achievements
- 22
- Rarest
- 0.0%
- Ultra rare (under 5%)
- 3
- Average completion
- 26%
1
The Complete Archive
Unlock every card in the Card Codex.
0.0%
2
Unbound, Unbowed
Complete a term choosing only Unbound-aligned options in every Major Crisis.
0.0%
3
The Dragon's Due
Complete a term with Shen Yang as Headmaster.
0.0%
4
The Patient Architect
Complete a term with Adris as Headmaster.
13%
5
An Empire of One
Complete a term with Alessandra as Headmaster.
13%
6
Every Question Answered
Complete a term with Asger as Headmaster.
13%
7
Sparks and Consequences
Complete a term with Kaspar as Headmaster.
13%
8
Freely Chosen
Complete a term with Nyeleni as Headmaster.
13%
9
The Stone Obeys
Claim the black stone's power to end the term.
25%
10
The Last Ward
Seal the black stone away for good to end the term.
25%
11
What the Stone Remembers
Study the black stone to end the term.
25%
12
By the Book
Complete a term choosing only Warden-aligned options in every Major Crisis.
25%
13
Roots Run Deep
Complete a term with Brayn as Headmaster.
25%
14
The Long Campaign
Complete a term with Louis as Headmaster.
25%
15
Summa Cum Laude
Complete a term on Difficult.
38%
16
By Any Means
Complete a term choosing only Reaper-aligned options in every Major Crisis.
38%
17
Tender Mercies
Complete a term with Maren as Headmaster.
38%
18
Tenure Achieved
Guide the college through a full 25-round term.
50%
19
First Lesson
Complete the prologue.
50%
20
The Reckoning Begins
Claim the black stone and step into the endgame.
50%
21
Dog-Eared Pages
Unlock 25% of the Card Codex.
50%
22
Cracked Spine
Unlock 50% of the Card Codex.
50%
Percentages are Steam's global unlock rates across all players who own Arcanum Collegium, refreshed daily. Under 5% is marked in the lit blue.