Posted June 06, 2020
morrowslant: The main reason is probably Piranha Games, the people who currently "own" the IP rights to the Mechwarrior franchise with their Mechwarrior Online & Mechwarrior 5 games, and have no financial interest in seeing the earlier Mechwarrior games re-released for sale to the public.
Plokite_Wolf: They merely have as many rights as MS licensed out to them. The older Mechwarrior games would be direct competitors to PGI's 2 Mechwarrior games, and any sales of the older Mechwarrior games would be money NOT going to PGI
Figure that Mechwarrior 4 alone would out-sell PGI's Mechwarrior 5 by a factor of 3, while the older Mechwarrior 3 series/Mechwarrior 2 series/Mechwarrior 1 would get lesser amount of sales equal to whatever Mechwarrior Online has made over it's lifetime.
PGI wasn't involved with making or selling any of the older Mechwarrior games, and as it stands, without massive amounts of behind-the-scenes IP contraction negotations, PGI has no rights to them(older Mechwarrior games) or any of the profits that would result from the older Mechwarrior games getting re-released.
btw
If you can get your hands on a legitimate physical copy of any of the Mechwarrior 2 series that ISN"T demoware or tied to defunct physical hardware, the Mechwarrior 2 games are relatively easy to get running.