i haven't found many like curveball and splinter, as it's a rare gem among bl manhwas, but some i found that have a similar vibe is master peace, and maybe acid town..? i've read 275+ bl's but those are the two i could think of off the top of my head. i'll probably come back and edit my answer if i find anymore,but curveball and splinter is unique is so many different ways it's difficult to find ones like it. my recommendation for now is if you haven't, you should read all of bad pharmacy's other works
ik this didn't really answer your original comment but as a strong curveball and splinter enthusiast, i've struggling finding the answer to this myself for a while;;
Aww I've read them all already thank you still if I find anything like curveball and splinter I'll let you know!
Y'all have any stories (not by the same author) with a similar vibe to Curveball and Splitter? It's just so cool but it updates once a month and i'm greedy i cant wait