Slime RNG Roll Speed Guide
Roll speed is throughput. Luck changes the odds of each roll; roll speed changes how many attempts you make while a boost is active. This page covers current code rewards and the best timing for them. Last checked 2026-06-23
Roll speed vs luck
Luck
Improves the expected quality of each individual roll. Sources include permanent perks, Luck Boost, Ultra Luck Boost, roster passives, and rebirth multipliers.
Roll speed
Increases attempts per minute. Pair it with an active Luck Boost so every extra roll gets the boosted odds.
Luck model: Luck stacks multiplicatively across permanent and temporary buffs, per TechWiser, Game8, Roonby, and ProGameGuides.
Codes that affect roll throughput
| Code | Reward | Status | Use it for |
|---|---|---|---|
WHEELIE | 1x Currency Boost + 1x Big Dice | Active | Reward supports luck or dice planning. |
Source: code lists from Destructoid, ProGameGuides, and Game8 (June 2026) and the Stouts Studio Discord.
Best timing plan
How long a boost window lasts
A Luck Boost and a Roll Speed Boost both last about 10 minutes. With Auto Roll running, a 10-minute window is roughly 200–300 rolls, so overlapping the two boosts is how you turn that window into the most attempts at boosted odds. Start both only after your friend is in the server and your roster luck passives are slotted, then keep rolling without interruption until the timers end.
Roll Speed upgrades are a separate, permanent purchase. The beginner guide ranks them fifth in the upgrade order, after Auto Roll, Coin Income, zone unlocks, and Enemy Slots, and ahead of the Super Luck and Ultra Luck upgrades.
| Boost | What it changes | Typical duration |
|---|---|---|
| Luck Boost / Ultra Luck Boost | Quality of each roll | 10 minutes |
| Roll Speed Boost | Rolls per minute | 10 minutes |
| Big Dice | Special dice variant, one-time use | Single use |
Roll-speed session checklist
Roll speed is only valuable when the rest of the session is ready. Before using a speed or dice reward, make sure the account has the free permanent luck sources, the current code list is checked, and the target session is long enough to benefit from faster rolls. A short distracted session wastes the same boost that could have powered a focused Huge slime hunt.
Use speed for volume
Speed helps when you can keep rolling continuously. It does not replace Luck Boost, rebirth luck, or roster passives.
Avoid mixed goals
Do not split one boost window between trading, code checking, and zone pushing. Pick one goal and stay on it.
Keep Auto Roll running
Auto Roll is the first upgrade to buy in the upgrade order, and it is what keeps rolls coming while a boost timer runs. Check that it is on before you start a window, and keep the game focused until the timers end.
If your goal is Huge hunting, read Huge Slimes first. If your goal is multipliers, start with the Luck Guide.
Roll Speed FAQ
Is roll speed the same as luck?
No. Luck improves the quality of each roll; roll speed increases how many rolls you can attempt in the same time window. Huge hunts need both.
When should I use Roll Speed Boost?
The best approach is to confirm your current luck sources first, then decide whether a temporary Roll Speed Boost is worth using in that session.
Are Big Dice worth using immediately?
Big Dice are a single-use special dice variant used inside the rolling system. Use them in a focused rolling session, ideally with your free permanent luck already claimed.