Learn how to get Snake in Grow A Colony through the Update 5.5 Snake Raid or 599 Robux permanent pass, plus real odds, tradeoffs, and failure answers.
Update 5.5 confirms two routes: complete the Snake Raid for a 2.5% chance each time, or buy Snake (Perm), currently 599 Robux. Forty raids is the mean of the geometric distribution—not a guaranteed unlock.
Calculate my raid oddsPrices and availability can change; the visible date is part of the answer.
Cost: no Robux purchase is stated for the drop route.
Outcome: each completed raid has a 2.5% chance to grant Snake.
Tradeoff: repeated completions can still end without a drop because there is no published guarantee.
Current price: 599 Robux on August 29, 2026.
Outcome: the Pass description grants Snake permanently.
Tradeoff: it removes raid-drop uncertainty but costs Robux; it does not prove any Snake stats.
Only the completion and chance are official; current in-game prompts must supply the missing access steps.
Open the exact Grow A Colony game by sebcaddy1 and confirm the public headline says Update 5.5.
Enter and complete the current Snake Raid using the live in-game instructions; the official description does not publish the entrance or party requirements.
Treat each completed raid as one 2.5% attempt. If Snake does not drop, another completion is a new chance—not progress toward a stated guarantee.
The table models independent attempts at the official 2.5% rate.
| Completed raids | At least one Snake | No Snake yet |
|---|---|---|
| 1 | 2.5% | 97.5% |
| 5 | 11.9% | 88.1% |
| 10 | 22.4% | 77.6% |
| 20 | 39.7% | 60.3% |
| 28 | 50.8% | 49.2% |
| 40 | 63.7% | 36.3% |
| 50 | 71.8% | 28.2% |
| 60 | 78.1% | 21.9% |
| 80 | 86.8% | 13.2% |
| 100 | 92.0% | 8.0% |
The 2.5% statement is tied to completion, not entry, damage dealt, or a failed attempt.
At 40 independent completions, the modeled no-drop chance is still about 36.3%.
Under the stated independent-attempt model, the next completion remains a 2.5% chance.
Best when you prefer the free route, enjoy the raid itself, and accept an uncertain number of completions.
Best when certainty matters more than the current 599 Robux cost and you expect to use Snake enough to justify it.
Best when your decision depends on Snake stats, raid time, or cooldown—none of which is confirmed here.
Complete Snake Raids for a 2.5% chance after each completion, or buy the currently listed 599 Robux Snake (Perm) Pass.
Yes. Update 5.5 names the Snake Raid as the free route, with a 2.5% chance each time the raid is complete.
Forty raids is not a guarantee. Under an independent 2.5% model, there is still about a 36.3% chance of no Snake after 40 completions.
It trades an uncertain raid grind for permanent access. The value depends on how much you want certainty, how often you will use Snake, and whether you prefer earning it through raids.
No pity or guaranteed raid count is stated in the current official game description.
