Update log
Full The Necromancer's Tale update
The complete published notes, normalized for clean reading and source attribution.
We're delighted to announce that Valve has now certified The Necromancer's Tale as "verified" on the Steam Deck! As big fans of the Steam Deck, we put a lot of work into this so it's great to get through this rigorous review process.
Controls
The schematic below shows the game controls for the Steam Deck. You can play the game entirely using the two joysticks and buttons.
The joysticks move your character and virtual mouse pointer. During normal play the D-Pad is used for cycling through nearby hotspots (and you can use A to interact with one and automatically walk up to it). The D-Pad cycles through your chat choices during conversation, and through menu buttons etc. The triggers and bumpers do a variety of camera controls and other in-game things that you would normally do with the mouse buttons/wheel.
Virtual Mouse
The right stick controls the mouse pointer. We have found this to be a very good replacement for mouse/touchscreen, and it's generally only needed during combat, inventory management, and on the settings window (when the D-Pad is a bit too limiting). In general, ‘A’ is equivalent to clicking the left mouse button, and ‘B’ is equivalent to pressing Escape.
Keyboard
An onscreen keyboard appears when you need to enter text (which is rare- it’s generally just at the start when naming your character, when renaming a save file, or when making entries in your journal). You can use the virtual mouse (or of course the touchscreen) to type.
Steam Cloud
The game saves to Steam Cloud so you can move seamlessly between Deck and PC play.
Touchscreen
The Deck's touchscreen works just fine, of course, if you wish to use it, but the game plays perfectly without it.
X Box Controller
If you're playing on PC, all of the above should work on your X Box controller too.
Source