SUNDAY MASS: How Rare Is It
What this page helps you decide: whether SUNDAY MASS is worth going after, and how far into the game's difficulty curve it sits
SUNDAY MASS is held by 33.3% of everyone who has played SILENT BREATH on Steam — about one player in 3. That makes it the 23th hardest of the game's 32 achievements. Steam describes it as "Explore the Church". Below: how it compares with the achievements either side of it, where the real difficulty wall in this game sits, and what the percentage does and does not tell you.
How rare this actually is
33.3% of everyone who has played SILENT BREATH on Steam has this one, which is about one player in 3. That puts it 23th hardest of the 32 achievements in the game. 22 achievements are rarer, and 9 are more common. For scale, the most common achievement in the game sits at 64.5% and the rarest at 0.1% — a spread of roughly 645 times between the two ends. The median achievement sits at 14.4%, so this one is on the common side of the game.
What sits either side of it
Just above it is I AM NOT YOUR FRIEND at 35.2% (about 1 in 3). That one asks you to survive against big sister. Just below it is I'M THE PROFESSIONAL at 29.9% (about 1 in 3). The step between them is 1x in players-per-unlock terms, which is the real measure of how much further you have to go.
Where the difficulty really jumps
The sharpest drop in the whole list is between STORY UNTOLD (0.5%) and FINAL ACT (0.1%) — completion falls by about 5x in a single step. That is where most players stop. This achievement sits before that wall, so it is part of what most players do finish.
Step-by-Step
- Read what Steam actually asks for: Explore the Church.
- Set expectations from the number: at 33.3%, roughly one player in 3 gets there.
- If you clear this, I'M THE PROFESSIONAL at 29.9% is the next wall.
Data Tables
| Achievement | Global completion | Players per unlock | Position |
|---|---|---|---|
| THE DEAD DON'T MAKE NOISE | 64.5% | 1 in 2 | Most common |
| I AM NOT YOUR FRIEND | 35.2% | 1 in 3 | One step easier |
| SUNDAY MASS | 33.3% | 1 in 3 | This page — 23th hardest |
| I'M THE PROFESSIONAL | 29.9% | 1 in 3 | One step harder |
| FINAL ACT | 0.1% | 1 in 1000 | Rarest in the game |
FAQ
How rare is SUNDAY MASS in SILENT BREATH?
33.3% of Steam players have it — roughly one in 3. It is the 23th hardest of the game's 32 achievements.
What do you have to do for SUNDAY MASS?
Steam lists it as: Explore the Church
Is SUNDAY MASS harder than I'M THE PROFESSIONAL?
No — I'M THE PROFESSIONAL is rarer at 29.9% against this one's 33.3%.
Sources
- Official SILENT BREATH global achievement stats (Steam) — Steam's own global completion percentages, captured 2026-08-28. The page declares 32 achievements and we parsed exactly 32, which is the check that the figures line up with the right names.