Javascript Game of Tron In 226 Bytes
Have you upgraded your hardware to play something beefier than 140-byte Tetris?
New submitter alokmenghrajani writes with "a detailed view of how we size-optimized a game of Tron to just 226 bytes." It's also optimized for Chrome, and very fast.
1KB Chess for the Sinclair still has that beat.
It's not really a game of Tron without a competing lightcycle. (Without fruit, it's not really a game of Snake either.)