Requirements for Alice

Requirements

CPU : Pentium 4 1.5GHz and up, Athlon XP 1.5GHz and up
RAM : 512MB
HDD : 25MB and up
Sound : OpenAL installer provided in the download
Video : OpenGL 2.0 compatible drivers
ATI Radeon 9500 and up, Catalyst 7.1
nVidia Geforce FX 5800 and up, ForceWare 169
Other video cards and integrated video cards not supported (will not work)
OS : Windows XP 32 bit and Windows Vista 32 bit

Win 2000 would not work since drivers available on this OS are too old.
Win 98 and Me are definitely off the list
Support for other OSes may or may not be added in the future, such as Linux

Technology

The engine is written with portability and performance in mind.

OpenGL 2.0
Custom render engine
GLSL shaders used to render absolutely everything
Extensions used :
GL_EXT_texture_compression_s3tc
GL_EXT_texture_filter_anisotropic (not absolutely required)
GL_ARB_texture_float
GL_ARB_half_float_pixel (not absolutely required)
GL_EXT_frame_buffer_object
GL_EXT_packed_depth_stencil (not absolutely required)
WGL_EXT_swap_control (not absolutely required)

Physics engine used : Newton, ODE (ODE support removed for now)

Image loader : DevIL, libpng, libjpeg, zlib

Math lib : glhlib

Sound lib : OpenAL

The render engine can handle multiple lights of different types (point, directional, cubemap, spot light), water effect with refraction and reflection, normal map animated or vertex animation on CPU for interactive effect, anaglyph (red left eye and blue right eye or whatever color your prefer), skybox, 2D elements, skeletal animation, keyframe animation, animation through scripting,
and many other effects.
Everything done with shaders (GLSL)
Shadow support via shadow map is experimental

Download (link might go down)