Quake II on PlanetQuake

Quake2
Quake_II_engine

Linux Quake HOWTO:Quake II
Quake 2 game server HOWTO

http://www.quake2.najlepsze.net/
Active Quake 2 Servers (dead link)
Quake II Servers list of active Quake 2 servers.
Quake2.com

tastyspleen
The SIN Raven
Mark Shan's Quake 2 Page (dead link)
Radiac's Quake 2 Site

Benchmarken van demo1 zonder geluid:

quake2.exe +set s_initsound 0 +timedemo 1 +demomap demo1.dm2

Bron:NVNews - Guide To Benchmarking - Page 2 uit Juni 2000

John Fitzgibbons maps for Quake I and II.
Clan WOS Quake 2 Maps collection of different maps.

Giex (dead link) see also Giex Links (dead link) and The Aristocats Forum (dead link).
ChaosDM
Vortex
WOS - Well Of Souls home of Q2:LOX.
Lithium II is a very configurable server-side deathmatch modification for Quake II. It adds many features and options to the game, while not requiring clients to download anything special.
OSP Tourney DM
Quake2 and Xatrix DM plus Quake2 baseq2/Xatrix gamei386.so enhanced code for DED DM only servers - all non-essential code/clutter removed, fixed bugs and game play enhancements added. Designed for speed on a deathmatch server (r1q2ded recommended) - server: xatrixuk.servegame.org
Quake2 COOP or DIE

3rd-Zigock Bot II
Gladiator Bot

Quake II Mission Pack 1: The Reckoning (dead link)
Quake II Mission Pack: Ground Zero (dead link)

Fabien Sanglard's non-blog - Quake 2 Source Code Review

QuakeForge

GitHub - NVIDIA/Q2RTX NVIDIA’s implementation of RTX ray-tracing in Quake II. Requires GeForce GTX 1000-series or higher, best with RTX 2000-series or higher. See also: GitHub - SkacikPL/Q2RTX.
GitHub - kondrak/vkQuake2 id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, MacOS)
R1Q2 (dead link), try r1ch.net - Old stuff and GitHub - tastyspleen/r1q2-archive
Yamagi Quake 2 with src on github
AprQ2: old (dead link), newer (dead link) newest (code only) (dead link)
Q2PRO, GitHub - skullernet/q2pro see also Quake 2 Engine Robustness Testbed
Quake 2 Icculus Project
Quetoo (dead link)
Quake 2 Mac OS X (dead link)
Quake2.NET (dead link)
Quake 2 Evolved zie ook Team Blur - Forums - Quake II Evolved General Discussion
Jake 2 (Quake 2 in Java)
Quake2World (dead link)
aaquake2 - Text Mode Quake II
Berserker@Quake2
Quake2XP
Quake 2 Graphics Mod
Yet another 3d adventure game
KMQuake II, used to be at KMQuake II (dead link). See also GitHub - n1ckn4m3/kmquake2megacoop increases maximum co-op players to 16, and GitHub - mczero80/KMQuake2 with a few fixes.
SourceForge - EGL, used to be at EGL (dead link)
Bitbucket - q2dos attempt at a port of Quake 2 for MS-DOS. GitHub - basecq/q2dos
FPS Ports - Quake 2 - Beefquake

GitHub - qbism/Quake2-colored-refsoft ref_soft.dll for Quake2 with 8-bit colored lighting in context of Knightmare's Unofficial Q2 Patch

Dead links or parked domains
QuakeDev.com (dead link)
Quake Standards Group, dead link, try AfterMoon - QuakeSrc.org archive index
qfusion (dead link)

aRQ-Lite2 (dead link)
Quake2maX (dead link). Mod DB - QUAKE2 Max v.44 Graphics Engine, FilePlanet - Quake2maX v0.42
The Quake 2 Compilation Project (dead link)
Quake II Linux (dead link)
sulq2 (dead link)

Quake 2 High Resolution Texture Packs
Clau PAKs contains many high-resolution item/weapon models and skins.

Start Quake 2 met het volgende commando:

quake2 +set vid_ref glx +set gl_driver libGL.so

SGI Quake 2 3.20

To make mouse movement go beyond a rectangle in the middle of your screen:

_windowed_mouse 1

To get rid of the distortion of sound, up the KHz beyond 11:

s_khz 48
snd_restart