What's live right now, what's coming, and what you missed. Save the live event tip — most veterans plan their entire week around the active boost window.
Slime RNG events are the highest-ROI windows in the entire game — global Luck multipliers, event-exclusive slimes that vanish when the timer runs out, and stacked Goop bonuses for everyone. This calendar tracks every event we've verified, refreshed within 48 hours of every developer announcement.
Stockpile Luck Boost codes before a major event lands, then dial in your effective luck with the Luck Calculator. Pushing endgame? Combine an event with a fresh rebirth for the highest possible multiplier.
May 5, 2026 — May 26, 2026
19 days left
Limited Void Realm event. Goop drop rate +50%, Void Slime base odds reduced from 1/10M to 1/7M for the duration. Special voidlight cosmetics from event shop.
Rewards & Buffs
May 30, 2026 — Jun 15, 2026
Starts in 23 days
Seasonal Candy Land overlay with cherry blossom slimes and a limited Bloom Slime craft.
Rewards & Buffs
Jun 20, 2026 — Jun 27, 2026
Starts in 44 days
One-week event where Rebirth Goop costs are reduced by 30%. Designed to help mid-game players push to Rebirth ×3.
Rewards & Buffs
Apr 2, 2026 — Apr 9, 2026
Ended
Celebrating 100 million visits — limited code 100MVISITS, free luck stacking, and login rewards.
Rewards & Buffs
Feb 10, 2026 — Mar 1, 2026
Ended
Winter celebration with the Glacier Yeti world boss and limited Frostbite Slime cosmetics.
Rewards & Buffs
Quick answers to the questions players ask most about event windows, exclusive drops and luck stacking.
Slime RNG events are time-limited windows where the developers crank up specific drop rates, add event-exclusive slimes to the pool, or stack global Luck/Goop multipliers for everyone. Most events run 7-14 days. Currently 1 event is live, 2 upcoming and 2 archived above.
Expect a new Slime RNG event roughly every 2-4 weeks, with a major event timed to each holiday (Halloween, Christmas, Lunar New Year, Summer). Smaller community events drop between major releases. Bookmark this page or check before any long roll session — running rolls outside an event wastes Luck Boosts.
Mostly yes — once an event ends, its exclusive slimes leave the drop pool until the event returns (which sometimes never happens). A few past slimes have rotated back during anniversary events, but plan as if every event-exclusive is your only chance. Trade priority shifts hard once a slime becomes 'archived'.
Always. Stacking your accumulated Luck Boost codes inside an event window with a 1.5× or 2× event multiplier is the single highest-ROI play in Slime RNG. The Luck Calculator lets you simulate the combined boost — most players see a 3-4× effective luck stack during major events.
The Upcoming section above lists every announced event with its start date and pre-event countdown. We update the calendar within 48 hours of each developer announcement, so this page is the fastest way to plan your save-up windows ahead of a launch.