Define Core Mechanic
30 minutesIdentify the single gameplay loop to prototype and set scope boundaries for the first playable build.
Field context
This workflow is part of 2 niche fields
Complete guide for first game prototype — step-by-step workflow, tools, checklist, and expert tips to get started.
Identify the single gameplay loop to prototype and set scope boundaries for the first playable build.
Estimate timeline and map size, then implement the minimum playable version with placeholder art.
Run playtests with real players, measure frame time, and refine mechanics based on feedback.
Finalize the prototype build, estimate file size for distribution, and document lessons learned.
Estimate prototype scope and sprint duration based on team size and feature count.
Calculate tile grid dimensions for level layout during early design.
Convert target FPS to frame budget while iterating on prototype performance.
Estimate build size before sharing prototype builds with testers.
Key benchmarks for first game prototype.
| Scope | Time | Team |
|---|---|---|
| Jam | 48 hr | 1-4 |
| Vertical slice | 2-4 wk | 1-3 |
| MVP | 2-3 mo | 2-5 |
Get the prototype in front of players before adding art or polish — fun must come first.
Commit after every working session — a broken build without a rollback point wastes hours.
Cut features aggressively for the first prototype — one polished mechanic beats five half-built ones.