I've been hard at work on a metroidvania-style cart with a bit of its own flavor. This has been super fun to do on pico-8, and I'll post it up once I feel at least 90%+ happy with it. In the meantime, does anybody have any recommendations for similar style platformer/exploration pico-8 carts to try out?

X-Zero: https://www.lexaloffle.com/bbs/?tid=36053

MetroCUBEVania: https://www.lexaloffle.com/bbs/?tid=30643

Star Anise Chronicle: https://www.lexaloffle.com/bbs/?tid=37868

Pip! https://www.lexaloffle.com/bbs/?pid=61895#p

"The Invincible Run-Gun-Bot": https://www.lexaloffle.com/bbs/?tid=30814

"Mea's Castle" (My Game ;P ): https://www.lexaloffle.com/bbs/?tid=39467

If you don't mind the lack of combat,
"Basement": https://www.lexaloffle.com/bbs/?tid=38901

Little Dragon Adventure: https://www.lexaloffle.com/bbs/?tid=31469