My Party Is Grinding runs a party of five heroes in a small desktop window while they fight, loot, and level on their own. Combat is automated, but which classes you lean on still decides how quickly you push through the game’s 200 battles. Each of the five classes fills a distinct role, and the gap between the strongest and the weakest is wide once bosses start hitting back.
Quick answer: Assassin and Mage are the top picks (S-tier), Warrior and Archer are solid choices that can climb higher with the right gear (A-tier), and Knight lags well behind the rest (B-tier).

Class tier list ranking
Four classes start locked, so you unlock most of this roster as you grow. Here is where each hero lands based on its combat performance right now.
| Tier | Classes | Role |
|---|---|---|
| S | Assassin, Mage | Melee / Ranged damage |
| A | Warrior, Archer | Melee tank-bruiser / Ranged damage |
| B | Knight | Melee |
Rankings weigh raw damage, survivability, range, and how much they benefit from elemental setups against the game’s stage and act bosses. This reflects the state of the classes for the August 2026 launch build.
Join readers who trust AllThings.How
Add us as a preferred source on Google so our practical guides show up first next time you search.
Add to Google Preferences →S-tier: Assassin and Mage
The Assassin is the strongest class in the game. It puts out huge single-target damage, which makes it the best option against bosses, and several of its skills add area-of-effect hits on top of that. Unusually for a damage class, it can also reach respectable health totals with the right gear, so it does not fall over the moment a boss lands a hit.
The Mage sits just behind it thanks to the widest range of element-based attacks. Its builds are more situational than the Assassin’s, but that flexibility lets you target specific boss weaknesses, and many of its spells carry solid AoE. The trade-off is low HP, so keep an eye on its health and position it as a glass cannon rather than a front-liner.

A-tier: Warrior and Archer
The Warrior is the best melee pick when you want a balance of offense and defense. Geared correctly, it works as a tank that absorbs heavy incoming damage, and it holds that role far better than the Knight. Its skill list is broad enough to trade blows offensively too, which makes it a dependable choice whether you are new or experienced.
The Archer brings the highest attack range of any class and hits hard from a distance. Set it up properly and it can fire different elemental attacks, giving it flexibility similar to the Mage. Health becomes a concern in the later stages, but it stays manageable, and both A-tier classes can push into S-tier territory with strong equipment.

B-tier: Knight
The Knight is the weakest class on the roster. Its only real upsides are that it is available from the start and easy to build, requiring no extra unlock work. The problem is its tanking, which is surprisingly poor for a class that is supposed to soak damage. Unless a future patch buffs it, plan to swap the Knight out as soon as you have a better option.
How to build a strong party
Each class levels independently with stat points plus active and passive skill trees, and you can equip a loadout of up to four active skills per hero. Because gear matters so much, an A-tier class with a well-tuned elemental or defensive setup can outperform a poorly equipped S-tier hero. Lean on Assassin and Mage for damage, use the Warrior to hold the front line, and keep the Archer for ranged pressure while you phase the Knight out of your core five.
The game is free to play, so you can test each class yourself and build around whatever elements your current bosses are weak to. You can grab it from the Steam store page and start experimenting with your own loadouts.






