Steam Revenue Calculator
Estimate revenue after refunds, taxes and platform share.
Open tool →QUBU PAGE
Free Game Development Tools
We collected a few calculations and working documents we repeatedly need during production. These tools are for estimation and planning, not a substitute for platform contracts or financial advice.
Player Retention Calculator
Convert D1, D7 and D30 retention rates into retained-player counts.
Open tool →Game Economy Inflation Calculator
Model first-order pressure between sources and sinks.
Open tool →Game Design Document Builder
Create a maintainable production-focused GDD.
Open tool →