We try to do everything. I will share some tips but some of them are very basic and I don't know which of them you already thought about.
Caveat: We only have free games and don't sell any (yet). So, take this with a grain of salt, I just share what worked for us and we do a lot of this before we release a game.
Write to press. Like really many people. Give them free copies, if you don't do this, they won't review your game (they might not do this anyway). Don't stay away from little blogs. You won't get much out of it but if you can be everywhere you should. Write to press that isn't in your native language (I assume it's English) and send them free copies with an English message.
Write to YouTubers and Streamers. The chance that they will pick up your game is tiny but it's possible. Our biggest spike ever (1500 downloads in two days) was with a Let's Play of a big YouTuber from Brazil (we were just lucky btw).
If you think about a Linux port - the community and press around this is often very welcoming even if the market is tiny.
Reddit was a great way at least for us to share our game. r/gaming is relatively pointless if you don't really know how to use Reddit, just use niche subreddits for your game and do not just market it - be part of the community etc.
I saw that you have a devlog - share it maybe on more platforms, if you haven't already. Long term YouTube might pay off.
And rework your trailer - we also need to figure this out but your trailer is not great. Get some inspiration from the bigger Indies - it's one of your best assets. I saw that you only used like 3 tags on your Itch.io page - use all of them.
Many of these things require a lot of work so I would recommend three things:
- Get someone with an AMD CPU and Graphics Card to test your game to complete the system requirements.
- Use all the tags (and rewrite some of the description - that this game is made by one person is nice but it shouldn't be the main hook and you have some errors in the text (we often ask people who can write better English than we can to help us (we are German, still learning)))
- Write to press (and maybe rewrite your trailer before)
After that a list of things which people recommend but we don't do:
- Have a Discord (we don't have enough followers yet)
- Ads (we don't really know how it works, don't like it really and don't have so much spare money)
- Support every system possible (we don't have a Mac and don't have spare money to buy one, we don't do mobile (yet) for various reasons)
I hope this helps and good luck with Blixten Quest :D
PS: https://itch.io/t/56343/how-do-i-promote-my-new-game this might also help a bit :)
PPS: Did you make a Release Announcement in the Release Announcements of Itch? :D