Death's Door is a great mix of souls-like, hack-and-slash, and metroidvania elements. The art style is cute yet detailed, and the environment design is both beautiful and engaging. The music adds a lot to the overall atmosphere, making the game even more enjoyable.
The level design is excellent, which is very important for a souls-like game. The characters are adorable, and the bosses have sufficent level of difficulty. The combat could have more variety but it works well for a short game like this.
A downside is the arena-style fights, where many enemies spawn continuously. These can feel repetitive and long.
Tip for new players: plant all the seeds you find into the pots.