StarNode has four character classes that will be present on launch. Each character will have a class logo in the upper left quadrant of the card. The four classes will be (1) War Fighter (2) Metamind (3) Node Runner (4) Space Pirate. Each class will have a defined skill and bonus set that aligns with their purpose in game. 

Our WP here has more class details under the game section: 
:point_right: https://starnode-1.gitbook.io/starnode-whitepaper-and-game-guide/

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TLDR, War Fighters function as StarNode's tanks, Metaminds are a manipulative magic class, Node Runners are difficult to kill assassins, Space Pirates are your multi-tool DoT dealers.