If you aren't playing anything interesting and wanted to try something a bit different, why not try the Doom II mod Venturious?

"A The Mummy/Indiana Jones/Tomb Raider -inspired partial conversion for Doom2.
I'm releasing it as-is for now. There's 7 completed maps, and I'm hoping to add some more in future, but no idea when that will be.

Dynamic Lights need to be ON.
Crosshairs ON is recommended.
GZDoom's Alternate HUD is suggested, set to show only Available Weapons.
If the game seems too dark, set Sector Light Mode to 'Standard' instead of 'Software'.
I don't expect compatibility with other mods. Damage Numbers by Xaser Acheron is already built in.