Doomfields

Doomfields is an autobattler roguelite focused on team composition, various upgrades and loot.
Your goal is to build a team that will reach Doomfields and beyond. After entering a room on the map, you (usually) fight. After starting combat, you can admire as your team defeats the enemies.

At the beginning, you choose one of three archetypes: Fighter, Rogue and Mystic.
At level 10 every archetype splits into three new sub-archetypes focused on special gameplay styles and abilities. For example, Fighter splits into Warrior, Knight and Guard. At 20 you get to choose ANOTHER one of three archetypes based on previous choices.
Repeat that for up to 5 characters in your team (you get a new character every stage).
In short: 3 main archetypes -> 9 sub-archetypes -> 27 sub-sub archetypes with unique abilities and mechanics.

Based on that, try building the best team with units that will complement and support each other.

But that's not all. You get epic loot that affects certain abilities or has abilities of its own. There are also keepsakes that support the whole team in various ways, team guidelines and tactics that also affect how your team behaves.
Game also allows asynchronous PvP so you can battle other players teams!
All that customization above creates one of the deepest roguelites out there.