Recently I downloaded tenebrae setup, then ran that setup of course and then the setup created some folder that contains tenebrae.exe, Tenebrae_launch.exe and a folder called "tenebrae".

Next to "tenebrae" folder, I created "id1" folder and then I put both pak0.pak and pak1.pak of vanilla quake inside the "id1" folder and then I ran tenebrae.exe directly through Windows File Explorer first time as normal user (not administrator) and second time as administrator.

In both times a black window appeared.

I remember that I saw the word "tenebrae" written on the title/caption bar of the window, but few seconds after launch the window disappeared.

Also I did not see tenebrae in the task bar too.

Then I ran tenebrae.exe directly again with Windows File Explorer but now in all compatibility modes starting from Windows 8.1 to Windows 95, but the result is the same (saw a black tenebrae window for a few seconds and then disappeared).

I also used the Tenebrae_launch.exe again without and with all possible compatibility modes without and with "Run as administrator", but in all runs, Tenebrae_launch.exe shows me a window with graphical user interface that allows me to configure tenebrae.

I used it to configure tenebrae to the settings that I wanted to and then clicked the button to start tenebrae and again I saw a black tenebrae window for a few seconds and then that window disappeared.

Then tried all other possible configurations but to no avail!

I don't succeed to run tenebrae properly on my system and my machine and I don't know why tenebrae is not just playing!

Please help me!

I surfaced some websites in the internet and saw a few amazing screenshots of tenebrae.

From all the screenshots that I saw I have gotten the impression that tenebrae is even more nicer than both darkplaces and FTE QuakeWorld!

I read that tenebrae is based on the new Doom engine graphics.