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Tremulous
Developer(s)	Dark Legion Development
License	Code: GPL; media: Mostly CC-BY-SA 2.5[1]
Engine	ioquake3
Version	1.1.0
Platform(s)	FreeBSD, Linux, Mac OS X, Microsoft Windows
Release date(s)	March 31, 2006
Genre(s)	First-person shooter Real-time strategy
Mode(s)	Multiplayer
Media	Download
System requirements	700 MHz CPU 256 MB RAM Intel GMA or 32 MB nVIDIA GeForce2 or ATi Radeon 7000 Stereo sound card 125 MB free hard drive space 56 kbit/s Internet connection
Input methods	Keyboard and mouse

Tremulous is a free and open source team-based first-person shooter with real-time strategy elements.^[2]

It was released on March 31, 2006. The game features two teams, humans and aliens, each having to build and protect a base. Victory is achieved by the destruction of the enemy base and by eliminating all members of the enemy team.^[3] The game has been downloaded over 1,000,000 times^[4] and was voted Player's Choice Standalone Game of the Year in Mod Database's Mod of the Year 2006 competition.^[5]

Contents 1 Gameplay 1.1 Aliens 1.2 Humans 2 Development 3 Reception 4 Modifications 5 See also 6 References 7 External links

[edit] Gameplay

Tremulous is a first-person shooter with elements of real time strategy, featuring two teams: humans and aliens.^[6] Players must build and protect a base which is essential for their survival, consisting of working buildable structures which provide various functions, the most important of which being the ability to respawn. Victory is achieved by destroying all enemy spawn points and eliminating all members of the enemy team before they are able to rebuild them.

During a match, most players engage in fighting the enemy, while others are responsible for base maintenance and construction of new structures. In order to defeat the enemy, humans utilize various weapons, armor and other upgrades, while aliens may evolve into more powerful classes, each possessing unique abilities.

The teams do not have access to all possible upgrades and buildings at the beginning of the game. Each team must accrue a number of frags in order to advance to the next developmental stage. The point at which a stage change occurs varies dynamically depending on the number of players on each team. Each new stage brings more upgrades for the humans and more classes for the aliens.

In addition to requiring a certain stage, each human item or alien class must be purchased using currency earned in game. Alien currency are officially called frags,^[7] although players frequently refer to them as evolution points or evos. The Humans gain credits. Players earn currency by killing enemy players or by destroying key enemy structures: the amount of received currency depends on how upgraded the opponent was (or which structure was destroyed) and how much of the target's total damage was dealt by the killing player. As a mechanism to encourage builders, who naturally don't engage in combat, players are also rewarded by currency by simply staying alive for certain amount of time.

Builders are responsible for construction of new buildings and base maintenance. Each building takes up a certain number of build points available to each team. The number of build points can vary from map to map and server to server, limiting how large bases can become. To reduce the likelihood of the match ending in a tie, most games enter a sudden death mode ten to fifteen minutes before the draw/tie time limit. This is a period during which the building of most or all structures is prohibited, allowing attackers to more easily overwhelm the defenders.

[edit] Aliens

The alien base is centered around a building called the "Overmind", without which many of their other buildings do not function, and they spawn from Eggs. Aliens may evolve (irreversibly) into a new form in order to upgrade their abilities, and they typically rely on short-range attacks and special movement abilities, such as wall-walking, wall-jumping, or pouncing long distances to combat the range advantage of their enemy.

[edit] Humans

Humans utilize various weapons, armors and other high-tech equipment as a means to augment their combat abilities. They are primarily suited for ranged fighting and need a strong, defensible base in order to survive. They can save up to 2000 credits for purchasing upgrades at the armory, which range from 70 to 600 credits in price.

[edit] Development

Tremulous' development commenced in early 2000 as a modification for the commercial computer game Quake III Arena. The gameplay is generally inspired by the Quake II modification Gloom, although they share no content. ^[8]. Version 1.0.0 was released on August 11th 2005. Because it was released after most other Quake III Arena mods, it was initially overlooked by many.

Though Tremulous features a similar theme and game-play to Natural Selection,^[9] it is not based on it, nor inspired by it. Development on the game began "long before NS was in the public domain".^[8]

Following the release of the Quake III Arena source code under the GPL on August 19th 2005, the developers decided to rework Tremulous into a stand alone, free and open source game. The current version, 1.1.0, was released on March 31st, 2006 and is based upon the ioquake3 Quake III source port. This version was received much more positively than those previous and attracted a considerable following in comparison to its peers.

Tremulous is licensed under the GPL, although it includes code from other projects that was released under other GPL-compatible licenses. Most of the game media is licensed under the Creative Commons Attribution-ShareAlike 2.5 License.^[10]

There are clients for playing Tremulous available for Windows and Linux,^[11] and an unofficial client for Mac OS X.^[12] The release of the game as free and open source software allows programmers to modify the game. A growing number of players are releasing patches for the game in order to remove bugs, add features to the game or modify the game play. Tony J. White (tjw), a key developer of the ETPub mod for Wolfenstein: Enemy Territory, contributed an administrative system^[13] that was soon incorporated into the official Subversion repository.^[14] Shortly afterward, Tony was granted commit access,^[15] as have other community members.^[16][17]

[edit] Reception

During the game's time as a Quake III mod, it had a small community. Since the release of 1.1.0 as a standalone game, it has grown such that there has been an average of around 400^[18] players playing at any one time, up to a maximum of about 600. 1.1.0 has now been downloaded over 1,000,000 times from Tremulous' official download site; moreover, multiple websites have mentioned or reviewed the game^[19][20] which further increased Tremulous's publicity and its number of players.

Tremulous later came in first in a "Best free game based on GPL Quake source?" poll on the PlanetQuake website.^[21] At the beginning of 2007, Tremulous also took first place in the Mod Database "Mod of the Year" 2006 competition under the category of "Player's Choice Standalone Game of the Year" as well as honorable mentions in "Genre Award: Action" and "Editor's Choice Standalone Game of the Year".^[22] Tremulous was also mentioned in Games for Windows: 101 Free Games Issue for 2007, Games for Windows formerly being Computer Gaming World.

[edit] Modifications

The Quake 3 engine allows easy creation of platform-independent mods, a feature naturally inherited by Tremulous. In addition, its basis in the GPL requires and encourages the community to share the code of binaries they distribute. As a consequence, several mods have been developed and released,^[23][24] and many patches and custom builds have arisen.^[25]

[edit] See also

• List of free first-person shooters
• id Tech 3
• List of open source games

[edit] References

[edit] External links

Official Sites

• Tremulous official website
• Official player and server count statistics
• Official balance statistics