Game dev kits and asset packs compared
Roblox systems, Godot add-ons, sound effects and pixel art packs, each compared with the kits and packs that rank for the same search, on published prices and licences read on each seller's own page.
Comparisons
Roblox shop system kits compared: tested code vs ready-made UIStallwren vs Roblox shop kits on itch.io and Gumroad: published prices, what each includes (code, UI, currencies, Robux Blipwren SFX vs Beep Yeah! 8-Bit SFX and Gamemaster Audio Retro 8 Bit: 8-bit retro sound effects packs comparedBlipwren vs two popular retro SFX packs on itch.io: published prices, number of sounds, formats, engine helpers and liceBest Roblox pet system kits: eggs, odds, inventory and price comparedRoblox pet and egg hatching systems side by side: true odds, luck and pity, inventory, fusing, trading and price. ComparBest Godot 4 shader packs: Shadewren vs single-effect shaders on itch.ioGodot 4 shader packs compared on effects, Godot version and price: Shadewren's 17 shaders vs stylized water and PSX look
How-to answers
Loot drop rate calculator: what are the odds in N tries?Chance of at least one drop in N tries is 1 - (1 - p)^N. Free calculator, the formula for spreadsheets and Luau/GDScriptXP curve formulas: how much XP each level should needThree XP curve formulas game designers use (linear, power, exponential), what each feels like, a table for levels 1-50 aFree game sound effects you can use in a commercial gameWhat a licence must say before you ship free sound effects in a paid game (CC0 vs CC-BY vs non-commercial), plus a free Two free Godot 4 shaders you can paste in now: hit flash and dissolveWorking Godot 4 canvas_item shaders: a white hit flash driven by one uniform, and a noise dissolve with a glowing edge. A Roblox DataStore save script that never wipes player dataCopy-paste Luau for loading and saving player data with DataStoreService: retries, UpdateAsync, BindToClose and the guarRoblox DataStore limits: requests per minute, size per key, key namesThe DataStore limits from Roblox's docs: 60 + players × 40 reads and writes a minute, 4 MB per key, 50-character names, Roblox leaderboard script: leaderstats you can copy and pasteA working Luau leaderstats script for the player list leaderboard, with coins and level values that save, plus how to chRoblox global leaderboard: top players across every serverLuau for an all-time global leaderboard with OrderedDataStore: write scores, read the top 50, refresh within the requestRoblox daily rewards script with a login streakA server-side daily reward and streak script for Roblox: UTC day numbers, a streak that resets after a missed day, and rHow to make a codes system in Roblox (redeem codes)A server-side redeem-codes script: case-insensitive codes, expiry dates, one claim per player, and a RemoteFunction for How to use developer products in Roblox (ProcessReceipt that never double-grants)Sell coins and boosts with developer products: the ProcessReceipt pattern that records each PurchaseId so a purchase is How to make a Roblox game pass (and give the perk in a script)Create a pass in Creator Hub, then check ownership with UserOwnsGamePassAsync and grant passes bought mid-game with PromRoblox DevEx requirements: who can cash out Robux, and at what rateDevEx eligibility from Roblox's docs: 13+, 30,000 Earned Robux, verified email, DevEx portal account and tax form. RatesHow to make a shop GUI in Roblox that exploiters can't abuseBuild an in-game currency shop: the GUI sends only an item id, the server looks up the price, checks coins and grants thRoblox pet system: make pets follow the player smoothlyA client-side pet follow script with AlignPosition-free CFrame lerping, arc formation for several pets and a hover bob. Roblox egg hatching script: weighted random pets with real oddsServer-side egg hatching with weighted random rolls, shown odds that match the code, and a charge-once rule so a hatch iRoblox admin commands script with ranks (for your own game)Add :kick, :tp and :speed admin commands to your own Roblox game with TextChatService, a rank check by UserId and a servHow to raycast in Roblox: a gun script the server checksworkspace:Raycast with RaycastParams for a hitscan gun: the client sends aim, the server checks fire rate and origin, caRoblox round system: intermission, round timer and winnersA server loop for round-based games: wait for enough players, intermission countdown, teleport in, round timer, pick winRoblox tycoon script: droppers, a collector and buttons that cost cashThe core of a tycoon in Luau: droppers that spawn parts, a collector that turns them into cash, and purchase buttons che