My Tutorials/Technique Evaluations:

From newest to oldest, my #gamedev related works:
Super Advanced Lighting (lighting part 5) 
Lessons Learned from Deus Ex: Mankind Divided
Modern Games and Mazes
Lessons Learned from What Remains of Edith Finch
Updating Game-Guru to HD
Optimizing your Game Guru level design
Seriously advanced lighting (aka lighting, part four)
Fog and Environmentals
Old Dog, Old tricks - weathering textures.
Mountains out of molehills!
Advanced lighting, (aka lighting, part three)

Basic Level Design in Game Guru
Game-Guru interior lighting (aka lighting, part two)
Lessons Learned from DOOM 1: Romero PT 2 - His NEW level for E1M8
Game-Guru Lighting Lesson (aka lighting, part one)
Lessons Learned from DOOM 1: Part 3 - Sandy Peterson
Lessons Learned from DOOM 1: Part 2 - Tom Hall
Lessons Learned from DOOM 1: Part 1 - Romero's level design (part 1)
My free NPC code:
Why FPSC Reloaded (Game-Guru)
My Sordid Affair with Games Making
On guns, pt 2 (video game guns)
On guns, pt 1 (video game guns)
Ground Clutter and Vegetation Tutorial