Once Upon a Slime Requirements & Quick Guide
Everything you need before starting Once Upon a Slime in RuneScape 3: skill levels, the full chain of quests to finish first, and what completing it opens up. Check your own stats against it below.
Requirements from the RuneScape Wiki (CC BY-NC-SA 3.0), snapshot 2026-09-28.
Skill requirements
Once Upon a Slime itself
No skill requirements for Once Upon a Slime itself.
Quest requirements
No quests need to be completed before Once Upon a Slime.
XP rewards
Skills Once Upon a Slime gives guaranteed XP in (fixed XP or a skill-locked lamp; choice lamps not listed). See the wiki for exact amounts.
Cooking
Quests that need Once Upon a Slime
No other quest lists Once Upon a Slime as a direct requirement.
Full walkthrough, items needed and exact rewards: Once Upon a Slime on the RuneScape Wiki . Requirement data is adapted from the wiki under CC BY-NC-SA 3.0.
All RS3 quests · Quest Cape order for Ironmen · XP calculator