It is a sample game of retrospector, a super simple 2D game engine for WebAssembly. Play online.
$ cargo --version
cargo 1.63.0 (fd9c4297c 2022-07-01)
$ rustc --version
rustc 1.63.0 (4b91a6ea7 2022-08-08)
$ node -v
v16.17.0
$ npm -v
8.15.0
$ cd /path/to/tetris
$ npm i --save-dev
$ npm run serve