Radical Fish Games known for the awesome CrossCode have just put a demo for their next action-RPG with Alabaster Dawn now available to test.
Quite a unique demo because it's split across two parts. The first is the beginning of the game, and your save will carry on to the full game. The second part as an extra skips ahead to showcase a number of other game features along with a part of a dungeon. They say it should give 1.5 - 2.5 hours of play time.

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More about it:
Alabaster Dawn is an Action RPG building on top of the best aspects of Radical Fish Games' previous title CrossCode, featuring a deep and engaging combat system, challenging puzzles and an epic story set in a curious world full of secrets to discover and places to explore.
The shadow of Nyx has fallen, warping the world into a wasteland and vanishing the gods and their people. Now, Juno, the Outcast Chosen, awakens to an impossible task: bring it all back.A (planned) 30-60 hours of playtime await you in this massive adventure, with 7 unique areas and many secrets to uncover. Rebuild settlements, establish trade routes and advance science by helping people. Each new advancement will be accompanied by the settlements changing visually, opening up new paths and opportunities!
The full game will have Native Linux support and the new demo does too. No release date set for the full game yet. Looks thoroughly to be worth a go though.