
C4 (Scions of Destiny) is old-school Lineage 2: long levelling, the epic bosses Antharas and Valakas, castle sieges without extra systems. It is chosen by players who started in the mid-2000s and want "the real" L2.
C4 servers are mostly low-rate and mid-rate, where every level and every item matters. Above are announced and opened C4 servers with links to their official websites.
C4 has no third classes, no Olympiad and lacks several Interlude systems, so the game is simpler and slower, closer to early Lineage 2.