Description
A staged upgrade shop where a player buys Stage 1/2/3 for engine, brake, transmission or suspension, the server charges and records the stage, and the handling deltas re-apply automatically on every relog. The market is flooded with one-shot upgrade menus that forget your build, this one's edge is server-persisted ownership and identical behaviour on ESX, QBCore and QBox.
Prompt Template
Write a FiveM Lua resource "stagedupgrades", Stage 1/2/3 performance parts for…
The full prompt template and its reference Lua are part of a one-time pack. Pick your depth, both are lifetime access, no subscription, ever.
- 60 prompts + syntax-validated reference Lua
- Lifetime access, pay once
- All 510 prompts, the full library
- Per-prompt profit/trend intelligence (CSV + playbook)
- Lifetime free updates, new niches as the market moves
$49 for 60 · $199 for all 510 + intelligence, one-time, no subscription.
Expected Output
The reference Lua at content/expected-outputs/mechanic/02-staged-performance-upgrade-tiers.lua validates price and the stage gate server-side, stores the owned stage table per plate, and re-applies…
The full prompt template and its reference Lua are part of a one-time pack. Pick your depth, both are lifetime access, no subscription, ever.
- 60 prompts + syntax-validated reference Lua
- Lifetime access, pay once
- All 510 prompts, the full library
- Per-prompt profit/trend intelligence (CSV + playbook)
- Lifetime free updates, new niches as the market moves
$49 for 60 · $199 for all 510 + intelligence, one-time, no subscription.
Known Failure Modes & Corrective Prompt
- Client-side charge, money is deducted in the command callback; trivially patched out. Move the charge into the server event.
- No persistence replay, stages apply once then vanish on relog because nothing replays them. Add the
upg:loadround-trip. - Unenforced stage gate, server accepts a Stage 3 buy with no Stage 1/2 owned. Gate it in the server handler, not the UI.
Corrective re-prompt: Make the server the single source of truth: store the canonical price array and the owned-stage table on the server, reject any buy where the requested stage is more than one above the owned stage, and add an upg:load event that replays all stored stages when the player re-enters the vehicle.
Framework Integration
ESX: xPlayer.getMoney() / xPlayer.removeMoney(price) inside the upg:buy handler; persist stages via oxmysql keyed to the plate.
QBCore: Player.Functions.RemoveMoney('bank', price) after GetPlayer(src); store the stage table on player_vehicles mods JSON.
QBox: exports.qbx_core:GetPlayer(src) plus oxmysql upsert so all three frameworks share one persistence path.
Profit Potential
$80-$1200/mo on Tebex (expected ~$300), priced in the $50-389 band; a saturated category (top sellers clear around $11.85K/mo, comparable Tebex) caps upside, so the play is reliability-led volume at a low price.
Trend Signal
↘ saturated, corpus: Tebex top-100 floods basic upgrade menus (scraper category density); edge = persistence + all-3-framework parity.
Sales Angle
Win on the thing competitors break: a build that survives relogs, identical across ESX/QBCore/QBox. Recommended Tebex price $89 as the dependable baseline upgrade menu.
Difficulty & Ship Time
intermediate · ships in 1 day.