Build a Monster Hunter style co-op game solo with Claude Code and Codex

A solo developer is building After the Wind, a Ragnarok Online meets Monster Hunter game in Godot. Every feature starts as an idea and research, gets built with Claude Code and Codex, then is judged in game and iterated.

$17/mo5 weeksAdvancedSource linked

Source

@afterthewinddev on X · 2026-10-20

Written in our own words. Credit to the original author. Link checked 2026-10-20.

What they did

Result (as claimed)

5 weeks in; others report 38.5B tokens in Claude Code, 2.9B in Codex and up to 8 agents at once. 3.9k views on his process post.

Tools they used

Claude Code OpenAI CodexGodot

Cost: Claude Code: from $17/mo; OpenAI Codex: free plan, paid from $8/mo.

Set it up

Write a one-page brief
Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.
Start the project with your agent
Open Claude Code and paste the brief. Ask it to propose a stack and a file plan before writing code.
Build one slice at a time
Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.
Test it like a user
Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.
Check security and ship
Keep keys in environment variables, check auth and database rules, then deploy and share the link.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Build a Monster Hunter style co-op game solo with Claude Code and Codex
What the original author did: A solo developer is building After the Wind, a Ragnarok Online meets Monster Hunter game in Godot. Every feature starts as an idea and research, gets built with Claude Code and Codex, then is judged in game and iterated.
Reported result (as claimed by the author): 5 weeks in; others report 38.5B tokens in Claude Code, 2.9B in Codex and up to 8 agents at once. 3.9k views on his process post.
Source: https://x.com/afterthewinddev/status/2112557587254382604
Tools they used: Claude Code, OpenAI Codex, Godot
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

You are helping me set up this AI use case end to end in Codex.

Goal: Build a Monster Hunter style co-op game solo with Claude Code and Codex
What the original author did: A solo developer is building After the Wind, a Ragnarok Online meets Monster Hunter game in Godot. Every feature starts as an idea and research, gets built with Claude Code and Codex, then is judged in game and iterated.
Reported result (as claimed by the author): 5 weeks in; others report 38.5B tokens in Claude Code, 2.9B in Codex and up to 8 agents at once. 3.9k views on his process post.
Source: https://x.com/afterthewinddev/status/2112557587254382604
Tools they used: Claude Code, OpenAI Codex, Godot
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

You are helping me set up this AI use case end to end in Grok Bot.

Goal: Build a Monster Hunter style co-op game solo with Claude Code and Codex
What the original author did: A solo developer is building After the Wind, a Ragnarok Online meets Monster Hunter game in Godot. Every feature starts as an idea and research, gets built with Claude Code and Codex, then is judged in game and iterated.
Reported result (as claimed by the author): 5 weeks in; others report 38.5B tokens in Claude Code, 2.9B in Codex and up to 8 agents at once. 3.9k views on his process post.
Source: https://x.com/afterthewinddev/status/2112557587254382604
Tools they used: Claude Code, OpenAI Codex, Godot
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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