If you like tactical coop combat you will love Gloomhaven. 95% guarantee.
(Hey, some people are weird.)
I got to try Aeon’s End tonight. This is a coop deckbuilder where you play “breach mages” defending Gravehold, the Last City, from the onrushing hordes of the Nameless things from the outer dark. It’s roughly similar to other deckbuilders with a touch of Sentinels or similar, but it has some interesting twists. For starters, you never shuffle your deck or the Nemesis (boss) deck. When you run your deck out of cards, you flip your discard pile over as your deck. If the Nemesis runs out, and there are no active Nemesis cards left, you win. Secondly, you have a turn order deck that is shuffled every round, which means you can never know exactly when you or the Nemesis will act in a given round.
You also have breaches, which are the slots you have to prepare spells in. Most characters start with one breach open, but mine started with two, and some have no starting breach at all. Other breaches start in an orientation indicated by your character, and can either be opened directly (for a large cash expenditure) or focused (for a smaller amount or card effect) to rotate once clockwise. If you focus a breach, for that one turn you can prep a spell into it. It also becomes cheaper to open going forward. The expensive breaches also grant extra damage to spells prepped into them. Casting prepped spells happens before your main phase where you prepare spells, so generally casting spells takes at least one full turn (although some effects let you cast prepped spells - yours or others - during the main phase). Once cast, they immediately go into your discard pile. You don’t have to cast prepped spells in open breaches, so it might occasionally be tactically worthwhile to hold off a turn or two for optimal effect or discard position, especially since they don’t count against your hand while prepped.
There’s a generic card pool for Nemeses, as well as unique cards and mechanics for each one. We fought Rageborne, the most straightforward, who builds Fury and then when it hits a certain point burns it off by playing a random Strike card from a little subdeck. He also has special cards that do nasty things based on his current number of Fury tokens. We came very very close to losing, as the city we were defending got down to 2 life at one point (and any number of effects could have done that or more in one of his turns), but we sacrificed a few relics that gave back city life and managed to do some intensive direct burn damage to bring him down in a dramatic climax.