Idle / clicker game with offline progress
Upgrades, exponential costs, autosave, and offline earnings: the core systems of an idle game.
Build an idle/clicker game themed around [THEME, e.g. 'launching rockets']. - Click to earn; 6 upgrades with exponentially increasing cost (cost = base * 1.15^owned). - Passive income per second; numbers formatted (1.2K, 3.4M...). - Autosave to localStorage every 10s and on tab close; offline progress capped at 8 hours when you return. - Achievements (5) and a reset/prestige button with confirmation. - Game state in one plain object; game logic separate from rendering so it's testable. Balance it so the first upgrade is affordable in ~10 seconds.
Tips
- Ask the AI for a small balancing spreadsheet (CSV) to tune costs.
Works with: Cursor, Claude Code, Codex, Replit, Lovable, Bolt, v0. Last reviewed 2026-11-13.