Plan and test game mechanics

A mechanic needs an observable rule: an action, a change in state and feedback to the player. Before adding more systems, test whether the first action, win condition and restart work together. The existing guides below provide the starting workflow and debugging checks.

Open Mechanics collection ↗

Prepare a game for publishing

Publishing starts with a game that can be tested, understood and maintained. Check the available creator controls, audience settings and safety requirements before a release. Use the publishing guide for the sequence, and the troubleshooting guide for an actual blocked step.

Open Publish collection ↗

BC-0111 · CORE GUIDE

Editorial review 2026-09-26

Roblox Build Asset Controls

Plan an asset change around the object's job and dependencies before selecting a replacement or removal operation. The RDC announcement describes an asset library and iterative control as part of Build's alpha expansion. It does not establish a universal per-asset editor or a reversible replacement command for every account.

Objective

Keep the asset's gameplay role intact through a targeted visual or object change.

Before you start

Identify the particular asset instance and its role.
Describe the current route and behavior before changing it.
Read the actual operation available in your editing surface.

Steps

List the asset's visible and behavioral responsibilities.
Choose replacement, adjustment or removal only where the real workflow supports the intended action.
Write the invariants and nearby objects that should remain untouched.
Apply a narrowly scoped change.
Inspect appearance, movement, cues and dependent behavior in context.

Verification

The changed instance matches the intended target.
The player's route remains understandable.
Dependent goal or obstacle behavior still matches the recorded expectation.
A successful visual replacement is not mistaken for a completed behavior check.

Limitations

No universal direct asset-control panel is established here.
The plan does not certify rights to the replacement material.
Documenting an original asset does not create an automatic undo or backup.

Working notes

An asset's appearance is only part of its role. A gate can also mark a route, block movement or identify a win condition. Write the behavior and references that must survive the change so a visually successful replacement does not quietly break the game.

Separate finding an asset from applying it. The asset-library guide handles source and selection questions. Here the output is a change plan: which instance is affected, what remains unchanged, what depends on it and how the result will be inspected.

Use the narrowest operation actually available and understood. If the interface offers only a chat revision, state the target and preserved behavior in that revision. If a direct control is visible, read its selection and scope. Do not translate an unfamiliar icon into a guessed replace-all command.

Inspect the asset in context after the change. A new sign can cover the route, a sound can mask an important cue, and a decorative shape can be mistaken for an obstacle. Judge the player-facing result as well as whether the requested object now appears.

Examples

Hypothetical gate change: replace the decorative gate's color treatment, preserve the passage width and goal trigger, and leave nearby obstacles alone. Check the approach view, passage and goal result separately.
Dependency note: object identity / visual role / movement effect / referenced behavior / cues it competes with / expected unchanged result. Unknown references stay marked unknown until inspected.
Failed change record: the gate looks correct, but the route is no longer readable. Record the obscured approach and request a visibility correction instead of treating the cosmetic change as complete.