I think somehow when typing parts of my uploaded game's nick to the top-bar, I'd expect to find games with that title (same for creator's usernames), or will it just list tags than titles there? At least it would be easier if there could be a sub-section like search-engines suggesting the existing pages that could be autofilled/meant when starting typing?
The rest of the website looks okay, I'd just prefer a "save"-option for recently used tags, etc. for uploaded games to pre-fill those for the next game, if it's similar than just retyping each one of them.