Cheers Tom, It's looking great so far! I'll upload a few of my games when I get the chance.
Here's some initial feedback:
1. As mentioned by chadorireborn, a back button from a selected game would be useful.
2. An option to follow a dev so you can jump straight to their games would be really handy (plus notifications when they add new content).
3. Is the "Top Games" selection determined by most upvotes/favourites or is it more complex than that?
4. When you select a game there's no indication which categories the game belongs in. I'd also indicate if the game is WIP or Test/Experiment on the game page.
5. Are games on the previous version of the arcade going to be automatically uploaded or is the slate being wiped clean?