Infinsweeper Game.
It's like minesweeper, but with an infinite board.
The static web-app is here: https://portfolio.syedm.dev/infinsweeper/
This version is without any signing up or logging in. The full sinatra based web-app can be hosted using this repo. It also has a ton of animations made using pure JavaScript Canvas API. The entire game is made using just the JS Canvas API while the backend is made using Sinatra (Ruby) and SQLite.
A screenshot
