In an online battle you run the game and your opponent plays over a live stream of it.
They need no download and no game files.
One-time setup
Point the game at your own copy of Heroes of Might and Magic II.
It stays in this browser and is never uploaded anywhere.
Drop your Heroes II folder here
or
Only the DATA folder is needed to play battles (about 40 MB).
MAPS and MUSIC are copied too if you include them.
Hosting
Share this code with your opponent.
Room code
…
Setting up connection…
Room codes need a lobby service, which this site does not have. You can still play:
send your opponent the connection code below, and paste the one they send back.
The game itself connects directly between you either way.