Timemaster
A time-travel RPG¸ set in 7128 in the time parallel that has advanced the furthest into the metafuture. A Time War devastated humanity¸ after which those whose ancestors were not wiped out decided to fund ""Time Corps"" to guard over time -- opposed by the alien Demoreans (from parallel A-217)¸ who intend to take over all of time destroying human history. It uses a variant of the original Chill system. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim"
Lurching into action¸ your battered chronoscooter crosses the void of time and space. Another lurch¸ and the vertigo fades. The countryside comes into view. Knights in armor battle¸ clanging sword against shield¸ and then someone blasts at your neck with a laser beam. Once again¸ all of Time is a mess¸ and as an agent of the Time Corps¸ you must set this world straight or die trying! Adventure to any place¸ any time¸ in this universe and beyond! The TimeMaster Roleplaying Game makes you master of the "Fourth Dimension"¸ guiding you to the ultimate adventure in history¸ legend¸ and science fiction. Fight cunning aliens and savage renegades who twist Time to their own purposes. Only skill and wit stand between the world you know and absolute chaos!