how to Solve Darkest Dungeon Crash on Start Up / Darkest dungeon Has Stopped working

Darkest Dungeon Adventure Action Game Doesn't Required High Specifications Enough For Running But some of user's like you may Face few of Error's Like Darkest Dungeon Crash on Startup 
" Darkest Dungeon Has Stopped working " So here is i Have 3 Fixes for Darkest Dungeon Has stopped Working / Crash on Start Up.

Solution Number 1:
Firstly Try To Run Game in Windowed Mode by Following instructions,
Open Steam and Click on Library then Click on "General" Tab Now click on launch Options

Steam => Library => General tab => Launch Options

 Modify or Write Screen Size
1289x720

Solution Number 2:
You may also Fix Darkest Dungeon Crash on startup by Disabling Steam overly Again Open Steam Click on properties of 
Darkest Dungeon

Steam => Darkest Dungeon Properties

Remove Check mark from  " Enable Steam overly while in The game " Darkest Dungeon

Solution Number 3:

Simple Try to Update your PC / laptops Driver For Following operating systems
Windows 8 32bit/ 64bit
Windows 7 32bit/ 64bit