Card Hunter

I've played a lot of great card games- Yu-gi-oh games, Pokemon TCG, and Slay the Spire- but this has to be my favorite game of the past 10 years. There are so many cool items to find and cards to use, so many interesting enemies and challenges, and such a great tabletop aesthetic. A game within a game! And since the Knights of Unity acquired it in 2021, there are now new updates and things to look forward to!
Card Hunter solves the problems of casual online co-op in a way that no other game does. The game as a unique power token system for determining the quality of equipment that heroes can use. Heroes get better power tokens by leveling up, and there is good equipment at every level of power. Each module has a level cap, and any hero over that level will be reduced to that level and will have that many power tokens to use on equipment. This means that equipment improvement is the method of growth in the game, and de-leveling a hero only takes a few equipment changes. So whether you play solo or co-op, your heroes will always be roughly equal in power and balanced for the module that you're playing!
Every module is unique and sometimes challenging, and all of them can be replayed for extra gear and gold. There are 100+ enemies, scary bosses and minibosses, and always a new way for your party to work together. There are 3 basic classes (warrior/priest/wizard) and races (dwarf/human/elf) to combine, but each class/race has several "archetypes"- very much like Slay the Spire's character classes- and unique cards that make them shine.
While this game is free to play, there are a few amazing expansion modules that are for purchase, like DLC. I recommend all of the non-basic module packs such as Attack of the Artifacts, Expedition to the Sky Citadel, and Aquisitions Incorperated; they can be very hard, and are all very cool! Some of them (Castle of Mitternacht, Eastpass Conspiracy) are free! Celestial Forge is currently in development as well.
As for things I dont like:
-I can only agree with others that the optional club membership (about $2.5 for one week of membership) is not often worth getting and probably shouldn't be in the game. I know that the new development team see this, and I expect it to be changed at some point. In the mean time, there are plenty of ways to game that system or skip it entirely.
-This game has a learning curve for new players, but the community is always willing to help people play better! There are forums and an official discord server for all kinds of questions, custom stages, challenges, and banter.
-PvP can be hard for players who dont have great equipment, but the new balance patch of Q2 2022 will address the biggest issues! (Looking at you, werewolf:)
Overall, I think that this game is amazing, even in 2022. I've had so much fun with it and I believe that you will too. If you have any questions, you can find me on the discord :)
discord.gg/cardhunter

This game is not bad, especially if you don't have a powerful system or don't feel like spending much money to play DnD related video games.
Positive sides:
+ FTP
+ Visual style and art
+ Variety of items
+ Dungeons and challanges
Neutral sides (+/-):
• Frequent running out of moves (+/- as it makes you take a break from playing, so unless it's a "gaming night" - that's not bad)
• Semi-funny jokes (they are not critically bad, but they are not sparkling either)
• Varied yet limited amount of the characters and classes (they are enough, considering that you only can have 3 at a time, but the more interesting options are purchased for you lunch money)
• Grindy
• Pseudo PvP (vs AI)
Negative sides:
- A bit annoying narration
- Constant suggestions to buy pizza (moves for real money)
- Typical Pay to Win issues
And so unless you mind having forced breaks from playing a game because you've run out of the moves/hearts/etc (a commonly known mobile gaming system) or listening to lame-O "nerdy" jokes - this game is fine. It was definitely created with the effort.

My favorite game. I've been playing for years.

Great game, really. However i dislike that there is no resolution changing settings at all. The only thing close to that is resizing your window, which sucks. Please add resolution changing.

This game solved my marital problems.

Fun with friends, but unbalanced for 2 player play.
Free to play, but intrusive monetization mechanics, of the mobile bs ilk. (Energy, locked rewards, content.)

A wonderful combination of RPG, Card Game, and Tactical Board game. Highly recommend.