PROXX
Play:
About:
Google's Chrome team built PROXX in 2019 to prove a browser game could run on almost anything, including a KaiOS feature phone, and it backs that up: every cell carries a screen-reader label, the whole board plays with arrow keys and Enter alone, and a Clear/Flag switch at the bottom gives touchscreens a real answer to Minesweeper's right-click-to-flag problem.
Underneath the interface work, the game itself is unchanged — the same random mine placement and the same three difficulty presets Windows shipped in 1990, down to the safe first click and the 50/50 guesses at the end. The reason to open it is what the controls do, not what the puzzle adds.
Credits:
Made by Google Chrome Labs (Surma, Jake Archibald, Mariko Kosaka, Paul Kinlan), 2019. Published here under the Apache-2.0 licence. Source code. The author's own page for it.