Strategy

Strategy Informer: Feeding your games addiction
Entertainment, Games, Video Games, Strategy, News and Reviews - Strategy Informer. A gaming community providing reviews, previews, interviews, screenshots, cheats, and a discussion forum.
https://www.strategyinformer.com/
GAMECATCHER.NET
Entertainment, Games, Video Games, Strategy, News and Reviews - Gamecatcher. A community dedicated to discussing of games and events.
https://www.gamecatcher.net/
The Wargamer
For All Your Strategy Gaming on the 'Net
https://www.wargamer.com/
War of Conquest
Massively multiplayer online strategy games with cash prizes. Play now for free!
https://warofconquest.com/
Netrek Vanilla Server
Entertainment, Games, Video Games, Strategy, Massive Multiplayer Online - Netrek Vanilla Server. Here you can get the latest source of the Vanilla Netrek Server.
http://vanilla.us.netrek.org/
Paradise Netrek
Entertainment, Games, Video Games, Strategy, Massive Multiplayer Online - Paradise Netrek. Paradise Netrek homepage, including links to paradise clients.
http://paradise.netrek.org/
The Netrek Homepage
Netrek is a free online game with a Star Trek Theme. Up to 16 online players battle in space for dominion over the galaxy. Game is available for download for Windows, Mac, and Linux.
https://www.netrek.org/
The Battle for Wesnoth
Entertainment, Games, Video Games, Strategy, Freeware - The Battle for Wesnoth. A turn-based game with a fantasy theme.
http://www.wesnoth.org/
Crimson Fields
Entertainment, Games, Video Games, Strategy, Freeware - Crimson Fields. Describes tactical war game for Linux or FreeBSD in the tradition of Battle Isle.
https://crimson.seul.org/
UFO 2000
Entertainment, Games, Video Games, Strategy, Freeware - UFO 2000. A multiplayer remake of X-COM: UFO Defense for Windows.
https://ufo2000.sourceforge.net/
L-O-C Homepage
Entertainment, Games, Video Games, Strategy, Freeware - L-O-C. Turn-based strategy game with some strong RPG elements, based on a game by Julian Gollop.
https://l-o-c.sourceforge.net/