Security 51 Achievements: All 68 & Unlock Guide
Quick answer
A verified Security 51 achievement guide covering all 68 Steam achievements, public unlock conditions, cumulative goals, hidden entries, and a practical 100% route.
Quick answer
Security 51 has 68 Steam achievements. Steam publicly shows the unlock text for some entries while leaving story and secret achievements blank. This guide separates confirmed requirements from hidden entries instead of guessing at undisclosed conditions.
Use the official Steam achievement list to compare your current completion, then use the tables below to plan the achievements whose requirements are public.
Confirmed progression and accuracy achievements
| Achievement | Confirmed Steam requirement | Best approach |
|---|---|---|
| You're a Guard, Harry! | Finish your first workday | Progress normally through the opening shift. |
| Excellent Guard | Make no mistakes for one workday | Read the current orders from top to bottom and check the end-of-day report. |
| Professional | Make no mistakes for five days in a row | Protect the streak; do experimental or deliberate-failure goals on another branch. |
| New Workplace | Move to the second floor | Story progression. |
| Where the Hell Am I? | Move to the third floor | Story progression. |
| Hard Day | End a workday with exactly 1 sanity point | Track sanity before the final visitor instead of leaving it to chance. |
| It's Just Not Your Day | Make no correct decisions for an entire day | Attempt this separately from a perfect-day streak. |
Confirmed cumulative achievements
These counters can be advanced during ordinary play. Keep progressing rather than sacrificing a clean shift solely to grind them.
| Achievement | Confirmed Steam requirement | Counter |
|---|---|---|
| Click-Clack! | Punch 25 passes | 25 passes |
| Here's Your Pass! | Punch 100 passes | 100 passes |
| Next! | Punch 300 passes | 300 passes |
| What's That Button For? | Call security for the first time | 1 call |
| One-Way Pass | Call security 10 times | 10 calls |
| I Was Just Following Orders | Call security 100 times | 100 calls |
| Quarantine | Send 10 people to the isolation ward | 10 people |
| We Have a Disco Ball | Send 50 people to the isolation ward | 50 people |
| Maître D' | Send 100 people to the isolation ward | 100 people |
| I Saw Some [Redacted] | Face 25 emergency situations in the isolation ward | 25 emergencies |
| Say "Cheese!" | Take photos of 100 anomalies | 100 photos |
| Bring me antidepressants, Santa! | Buy antidepressants 50 times | 50 purchases |
Confirmed action and system achievements
| Achievement | Confirmed Steam requirement | Planning note |
|---|---|---|
| Full Belly, Happy Heart | Buy 3 sandwiches in one evening | Save enough money before the evening shop. |
| A Little Treat! | Buy a pastry | Purchase it when the shop becomes available. |
| No Overtime! | Run out of time | Do this away from a five-day perfect streak. |
| ...I am Pagliacci! | Get a Rorschach test with the visitor's answers | Inspect the completed response instead of skipping the result. |
| This Will Only Sting a Bit! | Accidentally graze an anomaly while taking a blood sample | Treat it as a special blood-sampling interaction, not a normal story unlock. |
| Weird Science | Conduct every experiment in the isolation ward | Track experiments across shifts and avoid repeating completed options. |
| I Told The Mushrooms I Wouldn't Eat Them! | Resolve the Mushroom Satan crisis with Machina Fatorum | Use the relevant crisis branch; consult the Shift Map guide before replaying. |
Hidden achievements
Steam lists many achievements with an empty description. Names such as Quack!, Connection Lost, Blue Duct Tape, Digital Magic, and Don't Blink! are visible, but their official unlock text is intentionally hidden.
This page does not turn an achievement name into a made-up solution. For a hidden entry:
- Reach an ending and open the Shift Map.
- Replay a branch marked by a question mark or highlighted border.
- Change one operation or major decision at a time.
- Continue far enough for its downstream crisis result to resolve.
- Record the achievement and the exact branch only after Steam confirms the unlock.
Efficient 100% route
First run
- Play accurately and build the five-day Professional streak early.
- Accumulate pass punches, security calls, isolation entries, and experiments naturally.
- Buy the confirmed food items when the budget permits.
- Do not chase deliberate-failure achievements during an accuracy streak.
After the first ending
- Use the Shift Map guide to revisit highlighted branch days.
- Group achievements by crisis or ending route so each replay has a clear purpose.
- Use the choices database to note the changed decision and downstream result.
- Cross-check the endings hub before committing to a long replay.
Cleanup
- Finish cumulative 100/300-count achievements.
- Attempt Hard Day, No Overtime!, and It's Just Not Your Day on branches where accuracy no longer matters.
- Recheck Steam after each run; hidden achievements may not reveal their description even after the requirement is known.
FAQ
How many achievements are in Security 51?
There are 68 Steam achievements, confirmed by both the official store page and Steam Global Achievements.
Are all 68 achievement requirements public?
No. Steam displays exact text for some achievements and leaves many story or secret entries blank. Empty descriptions are treated as hidden requirements in this guide.
Do I need to start a new save for every ending achievement?
Use the Shift Map first. The game supports replaying alternative story branches, and the August 20 update added question marks, borders, and tooltips that identify useful branch days. A full new save should not be your default approach.
Are Steam completion percentages fixed?
No. Global percentages change as more players unlock an achievement, so this guide does not hard-code volatile rarity values as requirements.