I haven't played through everything yet, but I did finish both campaigns by MachineGames.
Dimension of the Past definitely feels like Quake. I'm fine with calling it the 5th episode. My favorite level from the pack was probably The House of Doom. I kept getting Wolf3D vibes from it. As for things I disliked, I wish MachineGames would have done more with the story. If you've played the final level, you know that it hearkens back to something that happened in the base game. It would have been interesting if your actions resulted in some kind of temporal paradox.
I haven't played
Eviternity but I feel like MachineGames was definitely inspired by its aesthetics. Put simply, Dimension of the Machine is gorgeous and it really showcases what's possible with a limit-removing port. I like how each episode only has a few levels, and for the most part, they stick to a particular theme. There are way too many damn enemies in each map, but I will say this is probably the first time I've felt like Quake's shotgun was really showcased. Dimension of the Cultists is probably the best episode because it does something that hasn't really been done since TNT: Evilution. Dimension of the Stonemasons is probably the worst. (Be prepared to quick-save. Often.) Overall though, the pack is absolutely worth your time!
Also, I'm curious to know what everyone's thoughts are on the changes to the Nightmare difficulty. According to one of the
developers, they took inspiration from the
Copper mod for Quake. I don't mind the health drop necessarily, but I'm not really a fan of breaking demo compatibility. I feel like Nightmare / Copper should be a separate difficulty. (Much like how the DOOM remasters have a UV+ difficulty.)
Lastly, I wish to correct something I said in an earlier post. The remaster's netcode may not be based on QuakeWorld but it has definitely been
modernized.