Lost Letter
60 achievements
Ultra Rare×33
Very Rare×16
Rare×6
Uncommon×5
About Lost Letter's achievements
Lost Letter has 60 Steam achievements, 33 of them ultra-rare — unlocked by under 5% of players. The rarest is "Living Encyclopedia", earned by just 0.9% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.
Rarest achievement
0.9%
of players earned "Living Encyclopedia"
Community Ratings
Loading…Difficulty—
Easy → Brutal
Enjoyment—
Meh → Loved it
Grindiness—
No grind → Huge grind
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All Lost Letter achievements
60 achievements
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare0.9%
Ultra Rare1.1%
Ultra Rare1.1%
Ultra Rare1.1%
Ultra Rare1.3%
Ultra Rare1.6%
Ultra Rare1.6%
Ultra Rare1.6%
Ultra Rare1.8%
Ultra Rare1.8%
Ultra Rare1.8%
Ultra Rare1.9%
Ultra Rare2.3%
Ultra Rare2.3%
Ultra Rare2.3%
Ultra Rare2.4%
Ultra Rare2.6%
Ultra Rare2.7%
Ultra Rare2.9%
Ultra Rare2.9%
Ultra Rare3.2%
Ultra Rare3.6%
Ultra Rare4.1%
Ultra Rare4.4%
Ultra Rare4.6%
Ultra Rare4.6%
Very Rare5.4%
Very Rare5.9%
Very Rare6.0%
Very Rare6.4%
Very Rare6.4%
Very Rare6.7%
Very Rare7.5%
Very Rare7.8%
Very Rare8.2%
Very Rare8.8%
Very Rare11.8%
Very Rare12.5%
Very Rare13.1%
Very Rare13.3%
Very Rare14.8%
Very Rare14.9%
Rare16.7%
Rare18.0%
Rare18.5%
Rare20.0%
Rare25.8%
Rare26.8%
Uncommon30.4%
Uncommon33.7%
Uncommon34.0%
Uncommon34.5%
Uncommon36.3%