Megamaps should not be published in the workshop because the unmodded game does not support them. I created this thread to share megamaps for TD.

All that Glitters...[drive.google.com] preview[imgur.com]
96x96, 8-player, temperate - Converted from RA, not the best map for skirmish against the AI because of limited build space but it was easy to convert.

Arena Valley Extreme (Mega)[drive.google.com] preview[imgur.com]
126x126, 8-player, temperate - Converted from RA, layout slightly changed to make it compatible with TD tiles.