Some measured context, since the waiting with no information is the worst part of this.
We run a large catalogue here and check indexability mechanically on every listing, so a few things we have actually tested that might save you effort:
Re saving the page, or editing the metadata again, does not nudge the queue. We tried it and nothing changed. So editing the tags a second time is unlikely to help.
Long absence on a clean page is common. On this board alone people have reported 8, 21, 32 and 49 days, and one case over four months. We also checked an unrelated stranger's page that had sat 21 days with nothing wrong with it.
While you wait, the two things worth confirming on your own page are that the cover image is set as the page cover rather than only sitting in the gallery, since a page with no cover does not get indexed, and that Unlisted in search and browse is unticked. Those are the two we see fail most often, and both are visible from your own edit page.
Thanks for the advice. Apparently there are some issues with support, there are a lot of threads about missing indexing, and they're also silent on email. It's really discouraging. It makes me think I'll have to develop a new game and test indexing there instead, because waiting around for this to get fixed isn't sustainable.
Before you start a second game, check again. We just searched itch for warship while logged out and WARSHIP is the second result, right under another game with warships in its title. The page also has its cover set and no noindex tag, so it looks like it's back in search.
If it drops out again, the direct link keeps working the whole time, so a post in a community that fits the game still brings visitors. The pinned unofficial indexing FAQ on this board says the review queue weighs genuine traffic from outside itch. We haven't been able to measure that effect ourselves, so treat it as a maybe.