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If you're curious about the performance on Steam Deck, it's pretty mediocre. Some PvE races hit 60 fps at low settings, but high action races with other players will cause the game to drop to 30-40. Otherwise, it works decently enough
This is a tricky game to recommend. I like it a lot, and I think it's really something special. It feels like an Xbox 360 game you'd take a chance on at Blockbuster and be pleasantly surprised with. The core gameplay is very rewarding and fun, and gives you an intense sense of speed. The game's theme is cool, even if I don't really think it works well in this genre. The graphics are also very impressive, even if I can't personally appreciate them since I'm on Deck and need to run everything at low quality. That said, there's a lot of small issues that bog the overall experience down for me.
First and foremost, the game being online only is absolutely ridiculous . I don't love the PvP focus, but I don't like the idea that I can't access bot races or the PvE mode if the game's getting an update... or becomes another Concord. If the game wasn't as fun as it is, I would not recommend it for this point alone. Looks like the devs introduced an offline mode, which is excellent!
The content for this game is really lacking. I'm not holding it against the game too much as it just released, but there's only a handful of tracks and the PvE mode leaves me wanting more. The various modes are fun and difficult (as you'd expect if you've played a Sonic racing game), but there's only 9 missions. There are 4 mission types, and each have 3-5 tracks, all laid out in a basic menu.
The race start and finish times are far, FAR too long. There's been a few times that the races themselves are quicker than the load times before and after it. I also find it frustrating that when I play PvE, I can't quickly restart when I'm in a race. For a game that scratches the gotta go fast itch, it enjoys making you wait.
I mentioned this in the beginning of my review, but I personally don't think this theme really works in the arcade racing genre. It looks cool visually, but tracks all have the same feel and a similar style, and it's very hard to tell them apart. The characters are also a little bland. I like playing racing games that have characters with personalities and different stats, but with Deathsprint 66 I find the characters uninteresting and boring. A majority of the character unlocks are recolors, or maybe a helmet here and there. There's no real customization aside from cosmetics.
Lastly, there's some general jank to the game. There's a lot of annoying checkpoints that will spawn you directly in front of an obstacle (or even off the map) and not being able to see your boost meter for a few seconds after respawning is a minor gripe I have. Some rails don't let you lean if you don't jump onto them, causing you to get hit by a grinder. I also find obstacles, powerups and the time rings sometimes blend into the stage and are difficult to spot. I think a lot of this stuff will get fixed eventually, but for now it's worth mentioning.
If you're like me and you love arcade / kart racers, or anything Sumo has done in the past, this game is an easy recommend. That said, you might want to consider waiting until some of these issues have been fixed and maybe a bit more content comes out.