The Original Strife: Veteran Edition (1996)

Hailed as the original FPS-RPG game that spawned countless imitators, The Original Strife: Veteran Edition is a love letter to the classic from 1996. Immerse yourself in this all-consuming epic quest that for the first time combines riveting role-playing adventure with the spectacular Doom 3D engine!
An evil presence has implanted itself in the fabric of our world. Play the role of spy, assassin, warrior and thief as you are lured into the darkest and most perilous adventure of your life. You'll have Blackbird on your side - a seductive underground agent that will provide you with clues as you encounter progressively more sinister foes.
Be strong, and trust no one.
FULLY INTERACTIVE WORLD
The elaborate virtual environment offers 28 interconnected levels covering over 200 square miles. Explore medieval towns and industrial complexes filled with pitfalls and perils, ending in a final confrontation that will reveal the planet's darkest secrets.
AN AWESOME ARSENAL
From the silent but lethal crossbow to the breathtaking flame thrower, you'll toast, mince and vaporize your opponents in your search to control the ultimate weapon of mass destruction - the Sigil.
NAIL-BITING NARRATIVE
In your role as resistance fighter, you'll conspire with allies to demolish the fanatical ranks of the order from the inside out. Provides an engaging complex storyline and a multitude of dramatic voice-overs.
New Features Include:

Completion of missing and unfinished options in the original game, such as: the planned "Capture the Chalice” multi-player mode, marking of current objectives on the auto-map, and special HUD for the Torpedo weapon
Support for high resolutions, with proper aspect ratio
OpenGL for video backend to provide portability and support for vertical sync
Dynamic lighting and bloom
Widescreen support
Ability to freely rebind all keyboard, mouse, and gamepad inputs
Achievements

MINIMUM System Requirements
Windows: XP / Vista / 7 / 8 / 10
Processor: 1.0 GHz Processor
Memory: 256 MB RAM
Graphics: 100% DirectX compatible graphics
DirectX: Version 9.0c
Storage: 500 MB available space
Sound Card: 100% DirectX compatible onboard / dedicated device
Mouse, Keyboard

Linux: Ubuntu 14.04, 16.04 or newer
Processor: 1.0 GHz Processor
Memory: 256 MB RAM
Graphics: 3D graphics card or onboard graphics compatible with OpenGL
Storage: 500 MB available space
Sound Card: Any ALSA supported card on onboard audio
Mouse, Keyboard

Mac: OS X 10.9.5 or newer
Processor: 1.0 GHz Processor
Memory: 256 MB RAM
Graphics: 3D graphics card or onboard graphics compatible with OpenGL
Storage: 500 MB available space
Sound Card: 100% CoreAudio compatible card or onboard sound
Mouse, Keyboard

Recommended system requirements
Windows: 7 / 8 / 10
Processor: 1.5 GHz Processor
Memory: 512 MB RAM
Graphics: 100% DirectX compatible graphics
DirectX: Version 9.0c
Storage: 500 MB available space
Sound Card: 100% DirectX compatible onboard / dedicated device
Mouse, Keyboard

Linux: Ubuntu 14.04, 16.04 or newer
Processor: 1.5 GHz Processor
Memory: 512 MB RAM
Graphics: 3D graphics card or onboard graphics compatible with OpenGL
Storage: 500 MB available space
Sound Card: Any ALSA supported card or onboard audio
Mouse, Keyboard

Mac: OS X 10.9.5 or newer
Processor: 1.5 GHz Processor
Memory: 512 MB RAM
Graphics: 3D graphics card or onboard graphics compatible with OpenGL
Storage: 500 MB available space
Sound Card: 100% CoreAudio compatible card or onboard sound
Mouse, Keyboard