While being on a gameplay-mod rage the last weeks, I have to mention one special thing from the modder Deadalus: Complex Doom. In my eyes it honors its name in all regards when it comes to its features:

• Each monster has typically 3/4 tiers where a random tougher monster will spawn in its place.
• Armor and Spheres have a random chance to spawn a stronger type / powerup.
• Weapons have been redone and feature reloading.
• There is an inventory system to make use of items / powerups which are randomly dropped by monsters.
• You can toss grenades and mines with weapons equipped.
• here's plenty more in it but again, its been out for so long people likely know whats what.

Next to that, a lot of additional features have been added since the initial release like upgradable weapons, kicking, demon runes and many more things. For a detailed explanation and a gameplay video, simply check the development and release thread over at ZDoom.org

Kinsie's project aims to modify the high-quality, elaborate TC "ports" of console versions of Doom, stripping them down a bit so that you can play cool gameplay mods like Demonsteele with them. Th... that's cool with you, right? This first part in particular is a modified version of Fenderc01's PSX Doom TC, allowing you to enjoy the atmospheric lighting, simpler geometry and lesser monster variety with the arsenal and beastiary of your choice.

Ever wanted to play all most of your favorite classic Doom maps in Heretic? Thanks to MObreck you can. All he wanted to do is to create an addon mod that would allow him to preform "fire-n-forget" style conversions of maps made for vanilla Doom to Heretic. Despite being often considered to be just "Fantasy DOOM" convert maps between the game isn't such a clean process. Heretic has considerably less textures and most of the two series's AI doesn't have a true equivalent between them. So the modder had been creating a mod file that contains a bunch of new Heretic type textures and enemy AIs to bridge the gap. It actually works like a charm and I really recommend it - so go and give it a shot - turn your techbases into medieval fantasy places.

And there comes another gem from Mechadon whom I consider to be one of the most talented mappers around. Counterattack has been released as beta 2 in his development thread and considering that it is Boom compatible, it looks utterly brilliant and feels like a very modern map set. It is supposed to be a 7-map mini episode for Doom II that he started on in the beginning of September 2016. The maps focus on singleplayer (and possibly COOP). Gameplay will likely consist of his standard, medium-paced difficulty with an emphasis on exploration and semi-nonlinear flow. The map sizes will range from medium to large, with the largest taking around 30-45 minutes to complete. More screenshots and a download can be found here.

Novelty ideas are the kind of ideas you do not think of at first, but when put in practice, they become surprisingly fresh and original despite the limitations it wields - a novelty. In this category ranks Oops! All Greyboxes, a recently announced community project led by Remilia Scarlet. The project centers on crafting maps using only prototype textures, for which a resource pack is provided. In doing so, your map achieves an unfinished look, mostly made out of solid colors. Further rules are:

• You can ONLY use the provided textures - no stock textures, no other packs.  That's the whole point of this project :-P
• This is for GZDoom using UDMF and the Doom 2 IWAD.
• Deadline: November 30th 2020.  This is firm.
• Pistol start on every map.
• No slaughter maps, no Terry or joke maps.
• Freelook will be allowed on all maps. Jumping and crouching will be up to each mapper, however.
• Each mapper can submit up to two maps.
• You MUST use long texture names on your maps or they will be rejected  outright.  This is a firm requirement.  When you first do File->New in UDB/GZDB, there's a check box that says "Use long texture names." 

Scarlet aims for "Finished and polished gameplay, and a prototype look."  Oops! All Greyboxes! is thus a project with a look all of its own, its idea indeed a novelty. And hopefully, its execution becomes a success.

Cyborg Lumberjack is a game inspired by PO'ed: You are a cyborg lumberjack and a bunch of rednecks have decided to ruin your day, pay 'em back with many explosions and bullets! There is currently a rough demo you can download, lots of placeholders and crap is present, and the author Darsycho currently figuring things out, suggestions and criticism is most welcome. This game makes use of a flying jetpack, so remember to check your key bindings.