Hammers smash Crazy Eggs; activating all four eggs needs ~60-70 hammers (up to ~100 if unlucky); goal ~20-30/day. All methods free/F2P. Two main: (1) Hunt bosses with a Double-Drop general -- drops a hammer ~50% of the time; low-level bosses drop at the same rate, so farm the map edge for fast low-level bosses (survey: 44 hammers from 85 bosses, 51%). Vikings drop worse (~28%). (2) Gather resource tiles ~level 6 -- a hammer is available when a gathering completes; probability roughly proportional to tile level. A ~Lv6 tile finishes in ~1-2 hours with ~70% hammer chance; better to gather several small tiles quickly than a few long high-level ones (high tiles take 5-12h). To raise availability, maximize gather speed: high-Politics general, gathering-speed skills (Lucy), Monarch Gear crystals (attach before reaching tile, removable after arrival), and the all-resources gathering-speed city-buff item. Comments (unverified): Lv7+ tiles reportedly give 100% hammers; some farm map-edge Lv2-3 tiles with 5 march threads. Hammers do not drop from normal (non-boss) monsters. For a bot, a King's-Ring double-drop general on fast low-level boss hunts, plus a gathering fleet, produces steady hammers to feed Crazy Eggs during event windows.
Original research source: Evony Guide Wiki