Main Features:-

Native 1080p rendering and huds
60 fps gameplay
Physx support with multi-threading
HDR post processing
Ragdoll physics with force impact
Modern animated hud
Test game menu (realtime visual controls)
Unified shaders with fog and ambient lighting
Parallax and detail mapping shaders
Volumetric lighting effects
Moving lights
Flashlight shader
Lightrays effects
Dynamic shadows for characters
Static lightmaps
Advanced explosion and particle FX
Bullet tracers
Slowmotion effects
Gravity effects
Dynamic vegetation shader
Moving clouds with alpha blending
Baked ambient occlusion
Weapon wheel
Projectile cameras
Player mantling
Interactive environments
Boss fights
Extra blood and gibbing
Improved map editor
Improved water rendering and physics
Improved weapon animations
Xbox controller support
Launcher for auto updating and lots more
Online scripting manual
Minimum specs required:

CPU: AMD Athlon 64 X2 5200+ Dual Core 2.60 GHz / Intel Core 2 Duo E6420 Dual Core 2.13 GHz
RAM: 4 GB
OS: Windows 8.1, Windows 10 or 11
Video Card: NVIDIA GeForce 8800 GT 512MB or better / ATI Radeon HD 4830 512MB graphics card or better