New to XDC DayZ? The five-minute rundown — the servers, staying alive, teaming up, building a base, raiding, vehicles, and where to find everything else.

How to build with the Base Building Plus (BBP) mod on XDC — workbenches, crafting kits, upgrading through the tiers, Tier 3 permits, cement mixers and base persistence.

XDC's custom Base Building Plus (BBP) material costs — the full per-stage cost of every wall, floor, roof, door, gate, hatch, window, stair and pillar, tier by tier.

XDC's own underground mod — digging a hidden tunnel entrance, the 60 m spacing rule, rocky ground, codelocks and camo nets, entering and exiting, the 10-second blackout, and staying safe when the base loads.

How tunnel bases are built cube by cube — dismantling walls, digging extensions, core supports, wall tiers T1 to T4, the vault door, exact material costs, the no-attachment-slot material rules, building controls and repair.

Lighting a tunnel base with craftable torch, gas lamp and flashlight holders (lights last ~100x longer), and the full Tier 4 chain — cutting armour plates from plate carriers, smelting steel, clay moulds and casting the vault parts.