Will a Minecraft birthday cake need support dowels?

I'm familiar with making large cakes I've made plenty of 3 tier cakes with support dowels and cake boards but they were all your pretty standard 3 tier round cakes. I'm curious if a Minecraft themed birthday cake would need support dowels? The bottom tier being a two layer rectangle but the top portion resembling a minecraft landscape with two layer square cut outs, some larger than others, and one layer squares in other places. I imagine it wouldn't be difficult to add supports but if I put dowels where every top piece of cake is… Cutting and serving the finished birthday cake won't be very fun.