1. A system for facilitating stochastic chunk-based map generation, the system comprising: non-transient electronic storage media storing individual tile chunks, the individual tile chunks including map tiles of different tile types for inclusion in one or more maps of a virtual space, wherein the individual tile chunks include a first tile chunk having a first tile of a first tile type and a second tile of a second tile type different from the first tile type, and a second tile chunk having a third tile of a third tile type and a fourth tile of a fourth tile type different from the third tile type; and one or more processors configured by machine-readable instructions to: obtain tile chunks so that the obtained tile chunks can be included in a map of the virtual space, wherein the obtained tile chunks include the first and second tile chunks; obtain one or more chunk placement rules indicating where the obtained tile chunks should be distributed within the map of the virtual space in relation to other tile chunks; effectuate stochastic distribution of the obtained tile chunks over a map area in the map of the virtual space based on the chunk placement rules such that, responsive to obtaining the first and second tile chunks, the first and second tile chunks are stochastically distributed within the map area according to the chunk placement rules; and effectuate distribution of individual map tiles between the distributed tile chunks on the map area.