The word &lsquomaraging&rsquo is originated from the combination of &lsquomartensite&rsquo and &lsquoageing&rsquo. Maraging steels are designated as low carbon martensitic steels famous for their ultra-high strength with perfect combination of toughness (ductility). The outstanding strength of maraging steels is not imparted by the carbon/ carbides the alloy is hardened through precipitation of intermetallic particulates (within alloy&rsquos martensitic matrix) that are formed during the ageing heat treatment. The low carbon content (< 0.03 %) of this alloy prevents solidification cracking during welding which makes the alloy a suitable candidate to be additively manufactured through laser-based techniques. The present work attempts Laser-Powder Bed Fusion (L-PBF) fabrication of maraging steel 18(Ni)300 parts. Upon fabrication, the as printed parts are subjected to a Solution Treatment (ST) and finally, an Ageing Treatment (AT) schedule. In this STA (ST+AT) treatment schedule, ST is performed at 840 °C/ 2 h and AT is carried out at 490 °C/ 2 h. In the as printed condition, the obtained solidification microstructure and static mechanical properties (tensile strength, fracture strain and microhardness) are compared with the STA-treated counterparts. Aspects of the dry sliding wear response as well as electro-mechanical corrosion behaviour of the L-PBFed maraging steel 300 parts are studied (the as printed and the post-heat treated conditions both).