Update 21.08.2019! The release version of a game is here:
https://davevsziggy.wordpress.com/%d0%b1%d0%bb%d0%be%d0%b3/
and here (with the some in-game music for download):
https://davevsziggy.itch.io/dave-vs-ziggy

Game "Dave Vs Ziggy": Entire gameplay of 1st level (with revealing some secrets).  COMMENTS and THUMBS UP/SUBSCRIBE if you like it. Thank you for watching/playing! There are a lot of secret places in the game - try not to miss them!  

This game was made by me (with the help of my son Nick) in 2016 - 2018: 1) as a tribute to the my childhood favorite games from ID Software (Doom, Wolfenstein 3D), 2) to estimate how powerful Excel VBA (Visual Basic For Applications) can be in creation of 3D action game, 3) for fun. Of course, you may treat it as "one more Doom on calculator", but indeed it has own narrative, original audio and pixel art, authentic made-from-the-scratch optimized 3D engine with "multi-floor" design, voxel and texturized polygonal objects, shaders, interactive mechanics with puzzles, secrets…