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SourceForts logo.png
SourceForts logo
Developer(s)SourceForts Mod Team
  • Felipe "Zoc" Silveira
EngineSource engine
Platform(s)Microsoft Windows, Linux, Mac
ReleaseFebruary 25, 2005 (2005-02-25)
Genre(s)Action, First-person shooter, Strategy

SourceForts is a multiplayer capture the flag mod for the computer game Half-Life 2. Two teams, red and blue, construct forts made from metal cubes and panels to protect their flag, and attempt to break into their opponent's fort to steal the enemy flag, which they must then return to their own fort to score. The mod was first released in 2005.[1]


Screenshot showing a member of the red team with the blue flag, a wall construction next to the flag, a skyfort above it, and one end of the map sf_reservoir.

Players in SourceForts have the ability to spawn and manipulate blocks and panels, being able to freeze and unfreeze the spawned blocks and panels to create and modify the fort. A typical SourceForts match is played out in a series of Build and Combat rounds. During the Build round players construct forts, and during the Combat round players duel in a capture the flag match, using the forts as bases.

Build Phase[edit]

During the Build Phase two teams are restricted to their own side of the map and with only a Gravity Gun, used to freeze and unfreeze blocks, pick them up and move them. Each side has access to a limited number of blocks, set by the server operator. Blocks come in six different shapes for use in the creation of an wide variety of structures.

Combat Phase[edit]

An in-game screenshot of SourceForts 1.9.2, on the map sf_conduit.

During the Combat Phase players are given weapons according to their chosen class and attempt to breach the enemy's constructions, ultimately capturing their flag. On most servers a successful capture and base return is worth 100 points and a capture without returning it is worth a single point. To win a map a team must achieve a total of 1000 points, or be the team with the most points at the end of a set number of build/combat rounds. This number is variable depending on the server set up and admins.


SourceForts was originally created by Daniel "Knifa" Callander who at the time was a twelve-year-old from Scotland,[2] with its first release on February 25, 2005.[1] He was responsible for all versions up to 1.4.1, until he ceased development due to frustrations with an update released by Valve for its game Half-Life 2: Deathmatch.[3] on which SourceForts is based. SourceForts on Christmas Eve of 2018 renewed public support with the release of the SourceForts: Classic,[4] that restored functionality after the dropping of support of Source SDK Base 2006 on the release of the major Source SDK Base 2007 release for Half-Life 2: Episode 1.


SourceForts was featured on Giga TV, a German television show, on August 10, 2006.[5] SourceForts version 1.9.0 was included on the cover disc of PC Zone magazine issue #163, January 2006.[6]

See also[edit]

External links[edit]


  1. ^ a b "Mod Database Sourceforts page, with the page creation date (right margin)". ModDB. Retrieved 2007-01-23.
  2. ^ "SourceForts Interview". Amped DX. Archived from the original on 2006-11-09. Retrieved 2006-11-04.
  3. ^ "SourceForts, a HL2 DM Mod". Spawnpoint. Retrieved 2006-11-04.[permanent dead link]
  4. ^ SourceForts 2 Team, Zoc. "Game Added: Dec 24th, 2018". Retrieved 12 May 2019.
  5. ^ "Capture The Flag + Die Siedler = SourceForts v1.9.2". GIGA.DE. Archived from the original on February 16, 2007. Retrieved 2006-11-07.
  6. ^ "PC ZONE ISSUE 163 rated 18 by the BBFC". British Board of Film Classification. Archived from the original on 2007-09-30. Retrieved 2006-11-07.