BC-0120 · CORE GUIDE
Editorial review 2026-09-26
Roblox Build Limitations
Classify a Build limitation before deciding what to do about it: access, usage, design fit, editing workflow or missing evidence. A generation failure is an observation, not proof of an official numerical limit. Use documented boundaries for decisions and keep unknown values explicitly unknown.
Objective
Turn an observed limitation into a justified continue, simplify, investigate or stop decision.
Before you start
- Describe the actual blocked action or incorrect behavior.
- Keep any displayed error wording and current source context.
- Avoid interpreting an unsuccessful attempt as an undocumented platform threshold.
Steps
- Classify the issue by the stage it blocks.
- Separate a documented rule from an observed failure or unknown detail.
- Identify the smallest decision the missing fact affects.
- Choose a bounded test, simpler design or appropriate external workflow.
- Record the exit condition and preserve working results before risky changes.
Verification
- The classification points to evidence relevant to the blocked stage.
- A failed generation is not converted into an invented numeric cap.
- The next attempt has a concrete question and stopping condition.
- A workflow handoff includes its status consequences rather than an assumed reversible switch.
Limitations
- No complete unpublished technical-limits table is available through this page.
- The examples do not establish device benchmarks or account eligibility.
- Simplifying a design can improve diagnosability without ensuring generation success.
Working notes
Access and usage limits stop different stages. An absent creation entry belongs with the account, device and region evidence; a displayed usage message belongs with the current allowance and purchase controls. Rewriting the game idea does not answer either prerequisite question.
Design difficulty requires a different record. List the behavior requested, what was produced and the smallest reproducible mismatch. A complex idea that fails to generate correctly may need a simpler design or a different editing workflow, but it does not establish a maximum object count, prompt length or universal unsupported genre.
Keep uncertainty operational. Write which decision depends on the missing fact and what safe alternative exists. If an unknown recovery behavior would put the only working version at risk, defer the destructive operation. If a visual detail is wrong, test a narrow revision while preserving the playable loop.
Choose an exit condition before spending more attempts. Continue when the next change tests a specific hypothesis; simplify when multiple systems obscure the cause; investigate Studio when direct inspection is genuinely needed; stop when access or a documented product boundary blocks the intended task. This is a decision aid, not a hidden-capability matrix.
Examples
- Classification record: observation = no creation entry; category = access; next evidence = actual platform, region wording and displayed account state. Prompt experiments would not resolve the missing entry.
- Design record: the courier can collect a parcel but delivery repeats after success. Category = behavior defect; next test = inspect the completed-state transition and repeat the delivery attempt. Do not relabel it as a platform parcel limit.
- Stop decision: a proposed operation has unclear restoration behavior and the working result cannot be reproduced from a reliable record. Preserve the current project and research the workflow before applying that operation.