Doom II: Hell on Earth - Project Osiris - Alien Breed 3D v.0.1 - Full game - Download

Project Osiris - Alien Breed 3D for GZDoom is a standalone free game created by ArcturusDeluxe. It’s built on improved Doom II engine, but doesn’t require you to own that game. It’s fully standalone release.

Description (in author’s own words):

Project Osiris is a remake/reimagining of the Amiga FPS game Alien Breed 3D, using the GZDoom engine.

Alien Breed 3D was a valiant attempt at basically creating Doom but for the Amiga, a machine that really wasn't suited for such tasks. The pixels were huge and the viewport was tiny, but it was a technically impressive 3D shooter considering the limitations. It even had some features over Doom - the water effects were amazing and it supported 3D floors and even texture mapped models. It was my first real experience of a texture mapped first person world so it was somewhat of a revelation to me. It may not be anywhere near as tightly designed as Doom (honestly some of maps are pretty bad), but I have a lot of nostalgia for it, and it has a place in my heart.

So, I decided my first major Doom engine project would be to recreate it and also, ideally, iron out some of the issues of the original. Having seen a few other attempts at remaking this game not reach fruition, I thought I'd step up to the plate and have a go at it myself!

FEATURES:

All 16 maps from the original game converted and adapted. The maps have generally been given additional monsters, tweaked item placement and even some extra shortcuts and surprises, but they are also still close the originals, for better or worse in some cases.

New textures and visual effects have been added. Dynamic lighting is used on many objects and some areas of the maps now have coloured lighting where appropriate. Additional textures have been added to denote teleporters, and doors that require switches to open (very handy on MAP11!)

New HUD, designed not to take up most of the screen this time! It now fits into a familiar Doom status bar format, or a fullscreen HUD if you prefer maximum viewage potential.

All 5 weapons from the original game, including new redrawn graphics and visual effects - also an additional one that didn't make it into the original game, the knife, for when you're out of ammo or you just feel like getting stabby. You can also switch back to the old weapon graphics if you're a fan of the hugest pixels!

Body armor and map terminal powerups have been added. Body armor absorbs damage like normal (at a rate of 33%) The map terminals reveal the full automap when activated.

All the original aliens are present and are angrier than ever. Many of them now have diagonal angle views (the original game only had side, front and back,) some now have death animations where they didn't before, and some have been completely overhauled graphically. The two boss enemies are also back, now with new mechanics! Look out for those in MAP08 and MAP16.

A few music tracks made by me, remixed from music originally made for the game but was missing in some versions. Also lots of additional sound effects added, some of which I'm actually legally allowed to use!

Instructions:

Extract to new folder and run gzdoom.exe.

• Last update: Wednesday, February 24, 2021
• Genre: Action
• File size: 51.8 MB