First 50:
52. Mechwarrior 5: Clans - PC
53. Diablo 4: Vessel of Hatred - PC
54. Romancing SaGa 2: Revenge of the Seven - Switch
55. Dragon Age: The Veilguard - PC
56. STALKER 2: Heart of Chornobyl - PC
57. Dungeons & Degenerate Gamblers - PC
58. Dragon Quest III HD-2D Remake - Switch
59. Indiana Jones and the Great Circle - PC
60. Extraneum - PC
61. Diluvian Ultra - PC
62. Starfield: Shattered Space - PC
63. X-Men: Children of the Atom - Arcade
64. Marvel Super Heroes - Arcade
65. X-Men vs. Street Fighter - Arcade
66. Marvel Super Heroes vs. Street Fighter - Arcade
67. Marvel vs. Capcom: Clash of Super Heroes - Arcade
68. Marvel vs. Capcom 2: New Age of Heroes - Arcade
69. Marathon 2 - PC
Marathon 2 picks up where Marathon left off; you awaken from being in stasis for 17 years by the Durandal AI from the first game and are informed that you've gone to the planet of the alien race you help out at the end of the first game to free them once and for all and give Durandal whatever it is he needs for his long range plans. And at the end, the star gets exploded and destroys the planet to try and rob you of the victory (though everyone evacuates in time or something).
In terms of what's new, three of the enemies have been swapped out for three different enemies; one of these swaps makes the flamethrower even more of a liability, as they're immune to it (and they explode on death, which is nice to experience). You get one new gun, a shotgun that can be dual wielded. Ammo is quite scarce for it, but it also has big damage (and more importantly, consistent damage against all targets). And they changed the alien gun to be worse; now it only fires straight ahead, or you can use secondary to fire at angles but not straight ahead, or both buttons to do both (and drain ammo the fastest). And it sets enemies on fire, so it precludes you from getting more. It doesn't kill as fast as the original, so it's a major disappointment.
But let's talk about the real new thing: water. This game introduces water, which can rise and fall. When you're in it, the only weapon you can use is your fists. The only enemy that can attack you is the one new enemy added, and they do so at melee range. They also have way too much HP for something you have to fight with your fists when in water. Like the vacuum level of the first game, you have an oxygen meter that depletes while in it and can only be refilled from switches on the wall. And the final bit of weirdness is how swimming works. This isn't like Duke Nukem 3D, or most other FPS's, where being in water is essentially zero G with maybe additional friction. Here you naturally sink to the bottom, but at any time can hold down dash to rise to the top. If the edge is low enough you can also get out this way, but the physics of it are janky and you often will take multiple tries. This is bad enough normally, but it's especially bad when you're in a hazardous liquid. And the level designers decided it was a good idea to have critical paths require you to go through hazardous liquid. Hope you have enough health ahead of time.
Overall, it's more of the same, still a janky mess whose reach far exceeds its grasp. I will say, they did improve how they handled switches. While you don't always know what door was opened by a switch, all the critical path doors either stay open or are close enough that you can see them open and run through; no more guess work like the last game, not to mention no awful puzzles around float dancing and getting platforms raised to the exact right height.