X-Men games in order

All 4 games of the X-Men series in the order they came out, from X-Men: Mutant Apocalypse (1994) to X-Men: Reign of Apocalypse (2001).

1. 
   X-Men: Mutant ApocalypseSNES · Capcom
   69Nov 1994
2. 
   X-Men: Children of the AtomArcade, Saturn, DOS +1 · Capcom
   708 Dec
3. 
   X-Men 2: Clone WarsGenesis · Activision
   6015 May
4. 
   X-Men: Reign of ApocalypseGBA · Backbone Entertainment
   25 Sep