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) 10:30, January 24, 2016 RealUlli (wall | contribs) . . (174 bytes) (+174) . . (Created page with "==Description== Minimal Tech upgrade, improves your mine. ==Where to get== *Find in wooden crates *Recycle copper coins ==Other useful info== Maximum Tech upgrade Boost") Retrieved from "https://resources-game.fandom.com/wiki/Tech_Upgrade_1" Community content is available under CC-BY-SA unless otherwise noted.