Build a Base and Steal gamepasses — the 9–499 R$ ladder and the Insane Pack bundle

The published gamepass ladder

Build a Base and Steal ships with five currently-on-sale gamepasses plus two reported offsale legacy packs. The Robux prices come from the official Roblox catalog and Rolimons:

The “Insane Pack” bundle at 499 R$ is the only published package deal. Buying the three components individually (199 + 399 + 299 = 897 R$) is 80% more expensive than the bundle.

How the multipliers stack

All multipliers stack multiplicatively, not additively. The effective cash formula in Build a Base and Steal is:

effective_cash = base_cash × rebirth_mult × gamepass_mult × event_mult × DR_band_mult

Where:

• rebirth_mult = 1 + R (R = current Rebirth tier)
• gamepass_mult = 1 (no pass), 2 (2x Cash), 4 (2x Cash + 2x Luck) — see your gamepass panel for exact stack
• event_mult = 1 baseline, varies with the active biweekly event
• DR_band_mult = 1.00 / 0.85 / 0.70 / 0.55 by placed-pets band (see AFK Income Calculator)

The Rebirth ROI Calculator lets you model gamepass_mult by adjusting the luck input — every 2x luck gamepass essentially doubles the luckMultiplier field.

Robux to USD context

Roblox’s published consumer rate is roughly $0.0125 per Robux (so 499 R$ ≈ $6.24). Developer Exchange (when devs cash out) pays closer to $0.0035 per Robux. The two rates are different on purpose — they’re not a bug.

• rbxconverter: https://rbxconverter.com/
• roblox.club calculator: https://roblox.club/robux-to-usd-calculator/

When modeling a gamepass purchase, use the consumer rate ($0.0125/R$) since that’s what you actually pay.

What’s not worth buying right now

• The offsale Pro and Starter packs are not purchasable through the official catalog. If a Discord DM or third-party reseller is offering them, that’s a scam — Roblox support will not refund gamepass purchases that bypass the official flow.
• Doubling up on Permanent Luck gamepasses doesn’t stack. If you own both 2x Permanent Luck (299 R$) and 4x Permanent Luck (499 R$), the 4x supersedes the 2x — you don’t get 8x.

Sources and verification

• Rolimons game page: https://www.rolimons.com/game/132016691802922
• Rolimons Insane Pack gamepass: https://www.rolimons.com/gamepass/1898660025
• rbxconverter: https://rbxconverter.com/
• roblox.club Robux-to-USD: https://roblox.club/robux-to-usd-calculator/

What to read next

• Rebirth Guide — model the NPV delta of each Rebirth tier with the calculator.
• AFK Income and Cap — model offline cash up to the 24/72h cap with the gamepass multipliers stacked in.