> For the complete documentation index, see [llms.txt](https://whitepaper.kartrumble.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.kartrumble.io/why-invest-in-kart-rumble-and-the-rumble-token-rbt/sustainable-tokenomics-and-ecosystem-design.md).

# Sustainable Tokenomics & Ecosystem Design

We’ve built the RBT economy to last—not pump and crash.

* Fixed total supply of 2 billion RBT
* Multi-phase vesting schedules to control release and reduce sell pressure
* 5% transaction tax on buys and sells, used to fund development and rewards
* Marketplace fees, tournament entries, and creator tools all rely on RBT

It’s a system that rewards long-term holders and constantly re-invests into the ecosystem.