For The Outlast Trials players who have encountered the issue of game not starting, this guide will show you how to fix it.
Steps
First you must go to the game in your library > Right click > Properties

After this will appear, you must go to Launch Parameters;
You should write -dx11 there;
And at the end start the game.

The cause of not starting is due to the fact that by default the game is configured to DirectX 12 which has some bugs, with this command you will not have any problem.