How Old-School RuneScape Squeezed an MMO Through a 56k Modem
Before broadband was standard, RuneScape's developers faced a brutal constraint: deliver a live multiplayer world over connections slower than a modern Wi-Fi router's idle chatter. A recent write-up breaks down how they pulled it off, focusing on aggressive data compression, minimal state updates, and a client-server model that only sent what absolutely had to change.
Instead of streaming rich graphics or constant position updates, the game leaned on simple 2D tiles, delta-encoded movement, and heavy reuse of cached assets already on the player's machine. Every packet was treated as precious, a mindset largely lost in today's always-on, gigabit-assumed development culture.
The piece is less nostalgia trip and more engineering case study, showing how real constraints forced clean, efficient design choices that still hold lessons for anyone building networked applications today.