King Idle

King's Idle

You are a king. Your job is to build a kingdom — and the more you focus in real life, the faster it grows.

King's Idle is a hybrid idle/productivity game built in Unity. It fuses two genres that usually pull in opposite directions: the dopamine loop of an incremental idle game, and the discipline of a focus timer. The result is a single reinforcing loop where idle progression makes your focus sessions more rewarding, and your focus sessions accelerate your idle progression.

How it works

Idle Mode is a full incremental game. Earn gold per second, spend it on units, upgrades, sector multipliers and cost reductions across three sectors — Population, Military and Magic — each with its own roster, from Farmers and Longbowmen to Necromancers and the Archmage. Progression is exponential and there's no win state: it's built for the long climb.

Productivity Mode is a focus timer with stakes. Set a duration, put your phone down, do something real, and come back to gold accumulating at a boosted rate instead of the idle rate. Finish the session for a post-session bonus on top. Leave early and you still keep the idle-rate gold — no punishment, just a missed reward.

Prestige resets your units and upgrades but grants permanent boosts that make both modes stronger on every run, deepening the loop the longer you play.

Features

• Three distinct sectors with 21 units to unlock and scale
• A productivity focus timer that rewards real-world work with in-game progress
• Prestige system with permanent meta-progression
• Exponential incremental design tuned with a custom balance spreadsheet
• Pixel-art medieval aesthetic

A note on the build

This is a work-in-progress demo. It began as my final-year university dissertation project, exploring whether idle-game reward structures can make productivity tools genuinely engaging — and I'm continuing to develop it. Feedback is very welcome.

Built with

Unity · C#