Black Mesa Leak into City 17 (HL2 x HL1)

You are Gordon in Half-Life 2 City 17. Black Mesa has leaked in: real HL1 MP5 / Tau / Gluon stats, plus Houndeyes, Bullsquids and Snarks with their HL1 roster verified from your own Half-Life install at runtime. Nothing from HL1 is shipped.

Press J for HL1 kit, H for Houndeye ambush, K for Snark. Solo single-player.

Requires Half-Life 2 (you play here) + Half-Life (its files are read where they are).