Animal HospitalWiki

Classes

Updated:

Every playable class — unlock cost, starting kit, special ability, and the playstyle it rewards.

Free-to-Play Path: Intern → Nurse → Surgeon

If you're not spending Robux, the unlock sequence almost every community guide agrees on is Intern (default) → Nurse (20 coins, +1 slot) → Surgeon (2,500 coins, S-tier endgame). Skip the mid-tier picks if you can stomach a slower grind, because Surgeon is widely ranked as the strongest free class in the game — every successful cure grants both sanity restore AND a speed boost, so a clean run compounds into a self-sustaining loop.

Source: Pro Game Guides tier list, Techwiser tier list.

The Robux Question: Is Secret Agent Worth It?

Secret Agent is the only A-tier paid class (320 Robux). The pitch: every shift starts with a 20-shot Gun that deletes hostile encounters from range. Multiple guides describe it as "making the game extremely easy" because you can take Skinwalkers without entering melee at all.

The honest counter-argument: the Gun applies friendly-fire damage to allies, NPCs, and patients. Public-lobby runs with chaotic teammates running through your sightlines turn a single misclick into a failed shift. If you mostly play solo or with a coordinated squad, Secret Agent earns the price. If you bounce between random lobbies, the friendly-fire risk is the real reason to think twice.

Class Synergies with Shop Upgrades

A few class + upgrade combos are notably strong:

  • Secretary + Extra Check-In Window: Secretary heals sanity per check-in. Adding a second window doubles your check-in rate AND doubles the passive's value.
  • Paramedic + NPC Speed Upgrade: Paramedic already starts with Large Speed Cola; adding the NPC speed boost makes ambulance waves trivial.
  • Surgeon + Patient Recovery: Surgeon procs on completed treatments. Faster recovery = more proc opportunities per shift.

When Sanity-Multiplier Classes Backfire

Psychologist doubles every sanity gain and every sanity loss. In a clean run that's a multiplier on the good stuff. In a messy run — Mass of Eyes uptime, missed Skinwalker, multiple events stacking — the double penalty turns a recoverable shift into a forced retreat. Pick Psychologist only when you're confident in your damage avoidance, not as a learning class.

Class Unlock Order We Actually Recommend

For free-to-play, the practical order ignores some intermediate picks:

  1. Intern (default)
  2. Nurse (20 coins — fast unlock, real benefit)
  3. Skip Secretary unless your run leans heavily on intake.
  4. Skip Paramedic unless you need movement speed for ambulance waves.
  5. Surgeon (2,500 coins — your real long-term goal)
  6. Security (1,250 coins) if you're committing to a patrol playstyle

Doctor and Psychologist are situational rather than upgrades to the previous tier.

What Each Class Actually Changes

Every class entry on this site lists the same five fields: unlock cost, currency, starting items, special ability, and the playstyle it rewards. Read the ability + playstyle together — the cost only tells you how long the grind is, the ability tells you whether the grind is worth it for your playstyle.

FAQ

Which class is best overall? Secret Agent if you're spending Robux. Surgeon if you're free-to-play. Both are widely agreed on across community tier lists.

Can I switch classes mid-run? Class is locked at shift start. Plan the pick before the lobby loads.

Does the Head Nurse +3 inventory cost real money? Yes — 190 Robux. It's the early-game Robux pick; Secret Agent is the late-game one.

Is there a "best class for solo play"? Solo: Surgeon (free, sustainable). Solo + Robux: Secret Agent. Avoid Psychologist solo because there's no teammate to absorb your mistakes.

Do classes affect anomaly detection? No — anomaly detection is the same workflow regardless of class. Class affects what happens on the treatment floor and during combat.