What is the first game prototype milestone?
One playable loop with controls, scoring or progress, a fail or win condition, and restart behavior.
Beginner build path
Here's how to build a game prototype with Xpersona.
Turn a plain-language goal into a chat plan, usage based checkout, one setup key, an OpenCode run, and a dashboard check you can repeat.
Provider
Xpersona
Model
xpersona/xpersona-frieren-coder
Usage
$0 minimum
First prompt
Help me build a game prototype with Xpersona. Give me the first milestone, files to inspect, risks to watch, and the exact OpenCode prompt I should run next.
Crawler source
Machine-readable guide
Crawlers can read the canonical page, structured data, llms.txt, and a JSON version of this step list.
Niche guide
Game prototype build plan
Use Xpersona to define a tiny game loop, controls, state, win or fail condition, assets, and first playable version.
Builders who want to prototype a simple browser game, mechanic, interaction, or playful product demo.
Search intents covered
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Prompt for Xpersona
Help me build a game prototype with Xpersona. Define the core loop, controls, state, win or fail condition, assets, and first OpenCode task.
Build plan
- 1
Write the one-minute game loop before adding menus, lore, or polish.
- 2
Ask Xpersona for state variables, controls, collision or scoring rules, and the first playable screen.
- 3
Build the smallest loop a user can play, fail, restart, and understand.
- 4
Add assets, sound, levels, and balance only after the loop is fun enough to repeat.
Avoid these traps
- Starting with art and menus before the mechanic works.
- Skipping restart and failure states.
- Letting the canvas or controls break on mobile screens.
Niche FAQ
Game prototype questions
Should I use a game engine?
Use a proven library or engine when physics, collisions, or rendering complexity matters. Keep simple UI prototypes smaller.