Events are mainly limited time events which Zynga holds on a weekly or fortnightly basis, each event offers different unique units which a player can purchase for Empire Points for a single unit or by "contract unlock". Contract unlocking a unit will enable a player to build that unit at the relevant military building ie Barracks etc, and will allow to player to permanently build this unit. With some events Zynga may release Limited Time Goals, limited edition housing & units.

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