Queen is kinda easy compared to The Servants boss but still fun to play, also this is the last DLC for Dead Cells(maybe it can change later) and comes with the new ending! Buy it it's worth.
Not the final one, this contains 2 addons(additional side-stories) to DOOM II: Hell on Earth and i only played 1 but still best. I'm too lazy to play the second.
Played it's cracked version and loved it, bought when it was on sale and started again. I'm in Sen's Fortress rn and it's very good, you should try this game!