> For the complete documentation index, see [llms.txt](https://roadrunr-protocol.gitbook.io/roadrunr-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://roadrunr-protocol.gitbook.io/roadrunr-documentation/technology/gameplay/reward-system.md).

# Reward System

Efficiency (E), Resilience (R), and Style Points (S) depend on the user level, Game NFT grades and Add-on materials on the Game NFTs. The user’s rewards per km driven are a function of E,R,S,T,M,H,D attributes

*$SDT token rewards per km are calculated in the following way*

$$
Reward (R) = E.C\_T.C\_D.M.H.S
$$

$$
C\_T = C\_{x1}.Min(15,D) + C\_{x2}.Min(100,D) + C\_{x3}.Min(250,D) + C\_{x4}.Min(500,D)
$$

$$
C\_D = 0.9 (Durability < 50):and:0.1 (Durability < 20)
$$

*M = Reward coefficient for owning a Miner device*

*S = Reward Scaling factor*

Parameters are ROADRUNR system parameters subject to continuous changes.