Downloaded gamemodes not showing up

I downloaded the warmelons:RTS gamemode but when I click on the gamemode menu I only see melonracer and sandbox. Warmelons isn’t the only non-working gamemode either, I downloaded a crap-load of other gamemodes and they won’t show up either. Could someone please tell me how to fix this issue?

Are you sure it’s in the right folder? Does the “addon” not come with a info.txt file? Then it most likely belongs in your gamemodes folder.

Gamemodes are not addons therefore they do not go in the addons folder.

I’m having the same problems. I put the flood mod gamemode in the gamemodes folder, but it isn’t showing up.