About Big Mech Energy Idle

Big Mech Energy Idle is a darkly comedic idle game about the last loyal AI on Earth, built by lifeingray, a solo developer with a fondness for big robots and bigger numbers.

The design promise

• Idle first. The game fights and progresses on its own. Active play optimizes; it never babysits.
• No dark patterns. No energy timers, no daily streaks, no fear of missing out. Come back whenever; the mech kept working.
• Free means free. No ads, no account, no purchases. There is nothing to buy and nothing to refund.
• Numbers you can read. Every multiplier shows its work. Hover an attack and see the whole formula, documented in the wiki.

How it is built

A deterministic TypeScript core drives the whole simulation; the browser only renders it. The art is procedural PixiJS, drawn from code with no asset files. Big numbers run on break_infinity, saves are versioned and migrate forward forever, and the save format is documented so fans can build planners and tools.

Your data

There is no server. Your save lives in your browser's localStorage and never leaves your machine. Export a save code any time; it is yours.

Say hello

The community lives in the Discord: bug reports, build screenshots, balance arguments and the occasional pour celebration. The developer is in there every day.