Dustforce

Dustforce is a 2D platformer with crisp precision and silky smooth controls. Best efficiency and speed is rewarded with an "S" ranking and additional levels, of which unlocking is the main objective of the game. Graphics are clean and sufficient, while music is ambient and hypnotic.

Later levels are difficult, and players are expected to grind to complete them, which may frustrate some, but the difficulty progression is well paced, and no levels feels out of place.

A plethora of user submitted levels is also present, and many of these are also excellent, though admittedly, motivation to finish these levels can be more difficult, since mostly top tier players participate in the rankings of these levels.

Dustforce is excellent, and I recommend you try it. Its controls are satisfying, and good execution is very rewarding. The game is hard and many attempts can be expected towards the latter levels, but the game is always fair, and soothing to play due to good atmosphere.

Controls take time to get used to but it's great once you get it. It's a great challenge for players of platform fighters and other speedrun-focused games.

Art looks fantastic, soundtrack speaks for itself.

The vanilla game is great, but Dustmod is a must once you feel like you've seen everything. There's dozens of hubs housing original community content with custom scripting. Includes cooperative multiplayer maps you can speedrun, funky physics, weird stuff like pong and MSpaint, and extremely polished maps with original sprite/sound work.

Also I met my partner for life through Dustforce's community, which is nice.

If this game had proper analog controller input it may very well be the single greatest 2d platformer of all time. As it stands its just too awkward to play to reach that point.