The paper explores the possibility that primordial black holes (PBHs) perceiving the dark dimension could constitute all of the dark matter in the universe. It re-evaluates constraints on the abundance of PBHs as dark matter candidates from γ-ray emission resulting from Hawking evaporation. The revised mass range that allows PBHs to assemble all cosmological dark matter is estimated to be \(10^{15} \lesssim M_{\text{BH}} / g \lesssim 10^{21}\). The authors demonstrate that quantum corrections due to the speculative memory burden effect do not modify this mass range. They also investigate the characteristics of PBHs localized in the bulk, showing that PBHs localized in the bulk can make all cosmological dark matter if \(10^{11} \lesssim M_{\text{BH}} / g \lesssim 10^{21}\). Finally, they comment on the possibility that the dark dimension could have two boundaries, leading to the production of tubular-pancake shape black holes localized on a brane at the space boundary. The paper concludes by discussing the implications of these findings for the dark matter interpretation of PBHs.The paper explores the possibility that primordial black holes (PBHs) perceiving the dark dimension could constitute all of the dark matter in the universe. It re-evaluates constraints on the abundance of PBHs as dark matter candidates from γ-ray emission resulting from Hawking evaporation. The revised mass range that allows PBHs to assemble all cosmological dark matter is estimated to be \(10^{15} \lesssim M_{\text{BH}} / g \lesssim 10^{21}\). The authors demonstrate that quantum corrections due to the speculative memory burden effect do not modify this mass range. They also investigate the characteristics of PBHs localized in the bulk, showing that PBHs localized in the bulk can make all cosmological dark matter if \(10^{11} \lesssim M_{\text{BH}} / g \lesssim 10^{21}\). Finally, they comment on the possibility that the dark dimension could have two boundaries, leading to the production of tubular-pancake shape black holes localized on a brane at the space boundary. The paper concludes by discussing the implications of these findings for the dark matter interpretation of PBHs.