Thank you for trying the demo!
Update March 9th
Thank you to everyone who tried or streamed the Steam Next Fest demo! You've given me tons of feedback to work on before Early Access launch this May.
The demo has been deactivated now that Steam Next Fest is over, but a new version of the demo will be released alongside the full game when it enters Early Access in May. If you leave the demo installed, you can continue your demo save in the full game.
Next Fest Demo Out Now!
As part of Steam Next Fest running February 23rd through March 2nd, you can try out the first-ever demo of Withering Realms right now. Go to the Withering Realms store page and click the Download button. 
FAQ
How much of the game does the demo cover?
The demo consists of the opening hours of the game. You’ll explore Beynon House (an introductory dungeon) before heading out into the Saintswood (the game’s first field area). The demo ends just before you head to the town of Penwyll. If you take a peek at the in-game bestiary, you'll get a hint of just how big the full game will be.
How long will the demo be available?
This is a special early preview of the game for Steam Next Fest, and doesn't reflect the final product. As such, it will be up for a week or so after Steam Next Fest and then taken down. Once the game launches into Early Access in May, a new demo will be released.
There's a bug! How do I report it?
Press the Slash(/) key at any time, or use the in-game pause menu. Bug reports contain:
* Screenshot, options settings, and save game
* Anonymized device info (GPU type, amount of RAM, etc.)
* Debugging information about the current game state
I have feedback! How do I give it?
You can use:
* Bug reports - having the feedback associated with your current game state and a screenshot is useful!
* Discord - click the link on the main menu to join
* Steam forums - great for posting long feedback
* E-mail - send an e-mail to [email protected] with your detailed feedback
Please note that as a solo developer, I cannot directly respond to all feedback, but rest assured I'll be looking at it.
I see title_ on the main menu and the game doesn't work right!
This was a bug that was fixed in 0.6d. If Steam hasn't updated the game for you yet, go to Options and select English as the language, and then start a New Game to fix the issue.
Will my save carry over to the full game?
That's the goal! However, if due to feedback I wind up having to make deeper changes, I may need to invalidate saves. But in that case, the opening hours will be pretty radically different anyway so it shouldn't be a problem to replay them.
The demo is too hard!
I've worked really hard to make it a fair but challenging experience, but if you're not having fun you can change the difficulty to Narrative in the Gameplay Options. Please also give feedback about anything you found too easy or too difficult.
Does it work on Steam Deck?
It runs great on Steam Deck and is playable start to finish with no issues. Note that the final movie will not play on Steam Deck, but it's just a game trailer you can watch here.
The game runs poorly on my machine!
Please file a Bug Report so I can optimize for your particular machine configuration before Early Access. You can try lowering the graphics settings. There is a "Perf HUD" option in the Graphics Options that you can turn on to see exact FPS and resolution details while changing settings.
Is there support for languages other than English?
The game will support other languages for full release, but the demo is English only.
How big is the demo?
The demo is 5 GB on disk.
Do I need to have played Withering Rooms to enjoy this?
You don't need to have played or finished Withering Rooms to fully enjoy Withering Realms. You can play them in either order and discover new story aspects in both directions.
What's next?
Wishlist the game, and I’ll see you in May for the Early Access release, or later in the year for the full release on Steam and consoles