im planning a planet type of game and i dont know why i can just jump up this block.

[twin musk]

That's because roblox players can climb up extremely steep slopes. And it's not a perfectly straight angle because it's not facing fully upwards (and yes, even that slight rotation is plenty for the player to climb up it). No clue on how to best go about fixing this to be frank

[south finch]

You can change the max slope in game settings

[twin musk]

Well yes, I was more so referring to the math to nicely estimate the angle of that part