Otter Spa Tycoon Drop Rates

These are the odds for every item or reward in the game whose result is random. If the odds change, this page is updated first.

1. Staff Recruit Chest

How to get: buy with 60 gems (Shop), watch a rewarded ad (3 per day), branch progress rewards, mission rewards

When a chest is opened, the result type is decided first.

Result	Odds (you have at least 1 staff)	Odds (no staff yet)
150 training EXP	50%	0%
1 staff member	50%	100%

If a staff member is drawn, a rarity is chosen, then one of the 5 staff of that rarity with equal odds.

Rarity	Rarity odds	Odds per staff	Staff
Common	60%	12%	Apprentice Scrubber, Snack Bar Helper, Rookie Cleaner, Rookie Stoker, Rookie Clerk
Rare	28%	5.6%	Veteran Scrubber, Snack Chef, Tidy Cleaner, Trusty Stoker, Smiley Clerk
Epic	9%	1.8%	Scrub Expert, Sikhye Barista, Cleaning Ace, Boiler Engineer, Friendly Concierge
Legendary	3%	0.6%	Legendary Scrub Master, Baked Egg Master, Sparkle Cleaning King, Flame Boiler Master, Veteran Manager

Overall odds when you have at least 1 staff: training EXP 50%, each common staff 6%, each rare staff 2.8%, each epic staff 0.9%, each legendary staff 0.3%.
A staff member you already own turns into EXP for that staff (common 60, rare 150, epic 250, legendary 400).

How to get: watch a rewarded ad (5 per day). Not sold for money.

Result	Odds	Contents
Gems	30%	2–10 gems (each amount equally likely, about 3.33% each)
Coins	70%	5–20 minutes of your current income per minute (uniform)

Starter Pack: 300 gems + 1 rare staff (chosen with equal odds among rare staff you don’t own yet; 150 EXP if you own them all) + Sheep Towel costume (for otter family guests)
Last updated: October 26, 2026