Browse history From year (and earlier): From month (and earlier): all January February March April May June July August September October November December Deleted only For any version listed below, click on its date to view it. For more help, see Help:Page history. (cur) = difference from current version, (prev) = difference from preceding version, m = minor edit, → = section edit, ← = automatic edit summary (cur | prev) 02:56, February 25, 2020 Trsixy (wall | contribs) . . (3,135 bytes) (+2) . . (Corrected the mining delay to once every 12 hours instead of the incorrect "once per day".) (undo) (VisualEditor) (cur | prev) 01:27, December 28, 2015 Falconerd (wall | contribs) . . (3,133 bytes) (+636) . . (Added more info about Scans) (undo) (VisualEditor) (cur | prev) 22:20, December 16, 2015 22.214.171.124 (wall) . . (2,497 bytes) (+556) . . (undo) (cur | prev) 01:50, August 26, 2015 Plan13 (wall | contribs) . . (1,941 bytes) (+105) . . (undo) (VisualEditor) (cur | prev) 21:50, August 25, 2015 Falconerd (wall | contribs) . . (1,836 bytes) (+1,836) . . (Initial description and cost table.) (VisualEditor) Retrieved from "https://resources-game.fandom.com/wiki/Drone_research" Community content is available under CC-BY-SA unless otherwise noted.