Full Metal Furies

This game is a gem. A beat em up with pretty interesting mechanics. It can be hit and miss, but to me a lot of the unique mechanics are good hits.
I'll have to say though it's better played as a playthrough game, something you play and progress through together with the same people, and not treated as a party game where people just play for a session and be done with it. That said, the game isn't that long, you can beat the game within 20 hours.
The game also has very good online coop implementation, it's pretty smooth and i only encountered a few minor bugs (which only happens when someone is really laggy)
In my opinion, despite the genre, this game is also more fitting for RPG players or at least gamers that can appreciate the puzzle aspect, especially better if you can discuss it with friends. The riddle/puzzles aren't easy at all and requires some thinking, especially the first one since you don't always expect puzzles from games of this genre to need out of the box thinking.
Difficulty wise it's generally pretty fair, a lot of the bosses aren't really that difficult but they generally have adds and that tests your ability to keep track of multiple different attacks and prioritizing some targets. There are some significant difficulty spikes here and there though, could've been smoother, but nothing too unmanageable. The game itself is also pretty generous and you keep the money/mastery you get even from failed runs (and each transitions/waves generally give you money rewards), so retrying a stage doesn't really feel bad at all.
Solid pick especially for online co-op.

Wow! A straight-over-the-plate, couch co-op DREAM. Responsive and dynamic game feel. Challenging but fair difficulty. My roommate and I lost an entire day the first time we booted this up. Huge "just one more run" energy coming off this potato. And way better writing than is required that had us laughing out loud. Fun and dynamic leveling system. I could go on. Can't believe I slept on this for as long as I did. Great game!!

This game is a real gem that went completely unnoticed.
Extremely fun and satisfying co-op beat 'em up with 4 completely different characters you can chose from (looking at you Castle Crashers, with your 50 copy-pasted playable characters), each with their unique tech tree and equipments, that you can mix and match to change completely the way you play the character.
The game also encourages the player to change equipment, by giving small stats increase, this way you are more incentivized to experiment and not stick to the same build for the entire game.
Many people dislike the colored shields that the enemies get, that must be destroyed by a specific character. I find this mechanic perfect for single player, so you are forced to swap characters, and it also works great in two players. I imagine that if you are in 4 players and the enemies keep changing shield color it can be become annoying tho. (There is a mod to remove the shields if you don't like them).
A negative thing for pretty much anyone are rosetta stones, the "riddles" you have to complete to get the true ending. Some are extremely hard to understand, I have at least three playthrough and I still have to search on the internet the solution for some of them. There are guides on steam that directly show all the codes, but even by having already the solution you still have to manually input them, and it's boring and time consuming.
A great positive point is that this game has a perfectly working online co-op, a thing that many beat 'em ups still refuse to implement in 2025. It also has split screen if that's your jam.

It might not look very impressive but the gameplay is very fun (I experienced it in co-op mode with a second person). The difficulty is well tuned. It is moderately difficult and sometimes challenging but not too hard either. Cooperation is key in this game and therefore experiencing the levels feels rewarding for all the players. This is not the type of game where the difficulty is non-existent (split fiction) or where one player can carry the other. One of the best co-op games I experienced.

Great teamwork, unique system of only certain players can damage certain mobs at certain times.. always rotating and keeping everyone moving.
2025-11-26 Update: My kids and I have >27 hours played and still loves this game. This is one of our favorite games of all time.

This is a really fun game in the vein of Castle Crashers. 4p local coop, each player gets one of the four unique characters (fighter/tank/sniper/engineer), each of which has four abilities (a/b/x/y) which translates to basically an attack, a dodge, a big attack, and a special attack.
Playing it with my elementary aged kids has been great, they love it. Plenty to unlock and discover, enemy types keep it fresh and combos of powers is fun. It does get pretty hard later on, with us having to retry bosses a dozen times to finally get it down. There is an option to turn on an easy mode though, which we haven't tried.
Playing it on the Steam Deck on our TV, the only problem was my 8BitDo controllers were causing a stutter when they were bluetooth connected. I had to plug them in with USB to get rid of the stutter. Otherwise it plays nicely on the Deck when docked.

Solo-player here.
Solid entry in the ARPG indie genre. I liked the game despite not having friends to play it with.
It is still probably a better experience when played in coop though.