i was searching seeds from some thing i know about and i found this survival island seed. Seed has 1-2 trees only with several mushroom biomes and some small islands. the spawn point is the largest island with a connected mushroom biome with maybe 1 or no trees on it due to a terrain glitch, if the tree hasn't spawned on the spawn island, there is only 1 tree in the entire map that is quite far from your spawn location. try and survive the map if you can. i will be doing a survival island challenge on this map some time this week.