Disco Elysium being on the list (and so high at that) is an abomination. Underrail being higher than Age of Decadence is a travesty.
AoD is better both mechanics-wise and as far as writing is concerned. Writing is WAY better and there shouldn't even be a hint of doubt here. Dialogues in UR either suck or are mediocre, dialogues (and writing overall) in AoD is either very good or superb. UR is too easy, especially with Oddity system (classic with grinding is easy too, if you're a fighter of course), while AoD combat system is challenging and requires the use of tactics. UR has too many flaws that annoy me like:
1) You can't load a game during combat unless it's your turn. It is annoying especially when you know for sure you will die before even all the guards will have a chance to burst ammo in you. No such problem in AoD.
2) If you want to sell your stuff you have to go from one vendor to another because one trader will buy only very specific things and nothing else. Which makes sense in real life but in a game it's annoying (and to be honest in a post-apocalyptic world I doubt any trader would pass on a chance to buy something he doesn't need at the moment but for a fraction of it's real value). AoD wins again.
3) Running is so slow in here and it's one of the main reasons I don't want to replay the game. Playing Underrail lets you realize how great "teleporting" is in AoD. First location (SGS) is very annoying, especially cave tunnel exit which is slow like a retard. Also, you can't skip the shooting session with Gorsky.
4) There are some idiotic choices, like you can't open your room from the inside unless you have a keycard (or lockpicks).
5) There aren't that many ways to accomplish missions and pickpocketing skill is a must have. AoD gives much more freedom to the player and always gives you more than 2 options. Here there are usually 2 options only where the second one is way more difficult than the first (e.g. retrieving Elwood's key).
6) It has too monotonous locations. Corridors, corridors and some more corridors. That is the main reason it's not as replayable as AoD.
7)
https://rpgcodex.net/forums/threads...e-game-of-the-year.106067/page-4#post-4311525
Crafting is good in both games (in AoD you also have Alchemy), UR offers more interactivity so you can disable cameras or actively use sneak (that also goes for your opponents). AoD often resembles a text adventure game rather than cRPG but that shouldn't be a problem for people with imagination. At least I don't have to spend 5 minutes on walking to disable a security system or to sneak into a building and pickpocket someone.
Last but not least UR is Fallout in sewers while AoD is a cRPG unlike any other.
And don't get me started on Deep Caverns:
https://rpgcodex.net/forums/threads/underrail-the-incline-awakens.105387/post-4319112
Underrail is way more difficult than Fallout and that's a plus. It doesn't "require powergaming", you just need to git gud. On my first playthrough I literally made an 800-damage, one-punch "monk" build without any metagaming. Just combined the Combo feat with a pneumatic glove.
Sounds like it's easier then not more difficult. On my first run I made a sniper that literally one-shot Tchort (and went after him straight, without doing the puzzle). It's way, way easier than Age of Decadence and Dungeon Rats especially.