Timemaster
Timemaster is a role-playing game centered on traveling through time and alternate dimensions, published by Pacesetter Ltd in 1984. Players take on the role of Time Corps agents who fix deviations in the timeline of the game. The primary antagonists are the Demoreans, a fictional race of shape-shifting aliens from another dimension who are determined to mold time to suit their needs.

Description
Timemaster is a role-playing game (RPG) featuring a time-travel system in which the player characters are agents of the Time Corps, an agency based in the year 7192 that is dedicated to preventing enemies from changing history.  

The characters are agents who have been rescued from the past and recruited into the Corps ranks, although they are forbidden from returning to any time that coincides with their previous lives. This means that players may create characters who come from any point in history and even from alternate dimensions. Since it is a time travel game, adventures, at the gamemaster's discretion, may be set anywhere from medieval times to the space age. 

Character generation starts with randomly determined attribute scores; the player can then allocate a number of points to the attributes. 

The main antagonists are an evil alien race called the Demoreans, who have also mastered time travel and are intent on changing history to eliminate their enemies.

Movement and combat are position-oriented, designed for use with counters on a hex grid. There are separate rules for personal combat, for skirmishes with hundreds on each side, and for mass combat involving armies.

The 64-page "Traveler's Manual" covers characters, combat (individual characters and mass battles), skills, paranormal talents, equipment, and non-player characters. The 32-page "Guide to the Continuum" describes the Time Corps and the enemy Demoreans, with brief overviews of ancient Athens, Rome during the time of Julius Caesar, medieval England, Tudor England, Napoleonic France, and World War II France. 

Because it uses the same system of rules, Timemaster is compatible with its sibling RPGs Chill and Star Ace.

Significance Rating
Each non-player character is rated for historical significance, which indicates how much of an effect that person has on the historical timeline. For example, a British soldier in the 19th century would have a very low Significance Rating compared to Queen Victoria. Using these ratings, the gamemaster can keep tracak of how successful the players are at preventing major alterations to the historical timeline.

Scenarios
The 16-page "Red Ace High" booklet is an introductory scenario set during World War I.

Publication history
The games company Pacesetter Ltd was founded by former employees of TSR who had left the company because they felt that in terms of role-playing games, it was headed in the wrong direction. Although Pacesetter was short-lived, it produced several role-playing games within a one-year period, all based around the same house system of rules, with the first three being Chill, Star Ace, and Timemaster. 

Timemaster, published by Pacesetter in 1984, was designed by Mark Acres, Garry Spiegle, Andria Hayday, Carl Smith, and Gali Sanchez, with cover art by Jim Holloway. Timemaster was published as a boxed set containing 
 two books (64 pages and 32 pages)
 a 16-page pamphlet
 a large color map
 counters
 dice 

After Pacesetter folded in 1986, their assets were acquired by 54°40' Orphyte, who published two Timemaster adventures, Miss Him, Miss Him, Miss Him (1991) and Darkest Before the Dawn (1992), and also supported the line with RPGA tournaments. In 2011, Goblinoid Games purchased all rights to Timemaster from 54°40' Orphyte.

Products
Numerous products have been published for Timemaster.

Pacesetter edition
 Timemaster (box set)

Game tools
 Timemaster Screen (a gamemaster screen that included the scenario  Missing: PT 109)

Sourcebooks and scenarios

 The Assassin Queen (scenario)
 Clash of Kings (scenario)
 The Cleopatra Gambit (scenario)
 Crossed Swords (scenario)
 Partisans from the Shadows (scenario)
 Sea Dogs of England (scenario)
 Temples of Blood (scenario)
 Terrible Swift Ford (scenario)
 Timestorm (scenario)
 Timetricks (sourcebook)
 Whom the Gods Destroy (scenario)

54° 40' Orphyte, Inc. products

Scenarios
 Darkest Before the Dawn (scenario)
 Miss Him, Miss Him, Miss Him (scenario)

Pacesetter System game line (Goblinoid Games)
 Timemaster Core Rulebook

Reception
Steve Norledge reviewed Timemaster for White Dwarf #61, and stated that "Overall, I quite liked Timemaster — it is an unpretentious little game, simple and yet provides the best yet framework for time travel rolegaming." Norledge concluded by giving it an overall rating of 7 out of 10, saying, "It is eminently suited to the 'one-off' style of play, and, yet, with effort, would also be a good campaign game (though it would have a very episodic feel to it)."

Jim Bambra reviewed Timemaster for  the British games magazine Imagine, and stated that "With its infinite variety of settings Timemaster has a lot of potential. Players can experience many different situations and save the world numerous times over."

In Issue 75 of Space Gamer (July–August 1985), Warren Spector commented, "Time travel RPGs seem to be in a mini-renaissance these days. If you're into this sort of game (and I confess, I'm not), Timemaster may be a good choice. It's got a fairly interesting unifying theme; the game does an excellent job of making time travel seem plausible, and the "Guide to the Continuum" is a gem. In this most open-ended form of roleplaying, providing players direction is no simple task. Timemaster does a fine job."

In his 1990 book The Complete Guide to Role-Playing Games, game critic Rick Swan commented, "What separates Timemaster from other time-travelling RPGs is its intriguing premise." Despite this, Swan found the game mechanics  "mix the elegant with the clumsy, resulting in an awkward set of rules that requires a lot of second-guessing from the referee." On the awkward side, Swan found the multi-mode combat rules "extremely complicated, forcing players to switch between role-playing and board gaming." But Swan found the character generation system "nicely handled." Swan concluded by giving the game a rating of 2.5 out of 4, saying "Timemaster is now out of print. Too bad, because in spite of its flaws, it's a terrific time travel RPG, second only to Timelords. 

In the 2014 book Designers & Dragons, game historian Shannon Appelcline commented that Timemaster "did more to play up the issues of time travel than any of the other scant few games in the genre, past or future".

Other reviews
Different Worlds #39 (May/June, 1985)
Asimov's Science Fiction v8 n13 (1984 12 Mid))
Breakout

References

External links
 Official Pacesetter home page

Pacesetter games
Fiction about parallel universes
Role-playing games introduced in 1984
Time travel games