Hi, 

I'm new to itch.io and I've seen that some browsergames have been added like OGame. 

I'm also a developer of browsergame, so I'm asking me, how to add the game to itch.io? Actually I have no game files to upload, because the game runs on my server. So any help appreciated. :-)

I think the solution is to upload an index.html file that does nothing but load your game in an iframe, or a similar method.

Ok. Thanks for the hint. But I'm still wondering, because the link above (OGame) doesn't need a download. So maybe there is also another way?