Cookbook

Complete, copyable examples per task. Every recipe is meant to be pasted into a Bootstrap and run — no hand-waving in the critical path. Three conventions hold everywhere:

• Kernel is the booted server kernel unless stated otherwise.
• Channel schemas use Packet type names ("NumberU16", "Vector3F24", …) — keep them in one shared module so both sides agree.
• Recipes that depend on Roblox services Studio can’t fully exercise (DataStores, MemoryStores, teleports, real purchases, real latency) carry a Status note stating exactly what is spec-verified and what needs a published place. Everything without one has been verified live in Studio play sessions.

Find your task below; each link lands on the full recipe.

Networking & State

Intents, channels, replicas, the bus, and everything cross-server — the full page is Networking & State.

I want to…	Uses
Send a player action to the server	NetDriver intents + hook validators
Define channels once for both sides	Registry
Push updates to clients	NetDriver state channels
Replicate live state with deltas	Replica
Ask the server a question	NetDriver requests
Decouple systems with events	Bus
Bridge bus events across the network	BusBridge
Send events across servers	MessageDriver
Punish network spammers	Rate limiting topics
Scope replicas to zones	Replica + Zones

Data & Persistence

Profiles, backups, settings, and surviving deploys — the full page is Data & Persistence.

I want to…	Uses
Save player data	DataDriver
Back up player data	DataDriver backups
Save player settings and keybinds	Settings
Share state across servers	MemoryDriver
Survive game updates gracefully	SoftShutdown

Commerce & Trading

Receipts, trades, and the item economy — the full page is Commerce & Trading.

I want to…	Uses
Sell a developer product safely	Receipts
Trade items between players	Transactions
Give players an inventory	InventoryKit
Roll loot with pity timers	LootKit
Craft items at stations	CraftingKit
Sell things for coins	ShopKit

Combat & Anti-Exploit

Server authority with client feel — the full page is Combat & Anti-Exploit.

I want to…	Uses
Catch speedhackers and teleporters	Movement monitor
Validate hits with lag compensation	Rewind
Teleport players without tripping the anti-cheat	Movement monitor pardons
Fire projectiles with travel time	Projectiles
Fight hand to hand, parries included	MeleeKit
Apply buffs and debuffs	Effects

Movement & Abilities

Responsive input under server authority — the full page is Movement & Abilities.

I want to…	Uses
Make abilities feel instant	Prediction
Bind abilities to movement, not just keys	MoveKit
Add keybinds players can remap	InputDriver
Cast spells with cooldowns	SpellKit

NPCs & Pathfinding

Brains, movement, and companions — the full page is NPCs & Pathfinding.

I want to…	Uses
Give NPCs brains, aim skill, and movesets	NPCKit + BehaviorTree
Find paths four different ways	Pathfinding
Summon familiars and pets	CompanionKit

World & Interaction

Zones, rounds, teams, quests, and boards — the full page is World & Interaction.

I want to…	Uses
React to players and NPCs entering areas	Zones
Let players interact with the world	InteractionKit
Run a round-based match loop	RoundKit
Split players into teams	TeamKit
Group players into parties	PartyKit
Queue players into matches	Matchmaking
Track quests from things that happen	QuestKit
Show stats on the leaderboard	Leaderstats
Keep global top-100 boards	Leaderboards

VFX & Media

Physics, effects, sound, animation, and device budgets — the full page is VFX & Media.

I want to…	Uses
Swing hair, capes, and tails	BonePhysics
Rig hair automatically and make it sway	HairKit
Dissolve things into drifting voxels	Dissolve
Ragdoll bodies that replicate for free	Ragdoll
Run the whole soundstage	AudioKit
Animate rigs and blend inverse kinematics	AnimKit
Preload assets behind a loading screen	Preload
Scale effects to the device	DeviceBench

Infrastructure & Ops

Sessions, scheduling, logging, live tuning, and observability — the full page is Infrastructure & Ops.

I want to…	Uses
Run code when a player joins or leaves	Sessions
Schedule recurring or background work	Scheduler
Run long-lived behaviors you can pause or kill	Processes
Run heavy CPU work in parallel	ActorPool
Log with scopes and sinks	Logger
Capture and deduplicate script errors	ErrorWatch
Tune values live without redeploying	LiveConfig
Watch kernel health in live servers	Kernel diagnostics
Watch everything live with the debug panel	Debug panels
Reuse instances instead of churning them	Pool
Ship gameplay analytics	Analytics

Testing & QA

Proving it works, then proving it survives hostility — the full page is Testing & QA.

I want to…	Uses
Write tests	TestKit
Benchmark your own systems	TestKit Bench
Fuzz every channel with hostile payloads	Fuzz
Audit the security surface in one call	Security audit
Stress-test the kernel with simulation modes	Simulation