Evony Keep 49 Upgrade Prerequisites and Preparation

To start the Keep 49 upgrade in Evony, you must first upgrade your Wall to level 48, safeguard billions of basic resources, and activate all construction speed buffs before committing speedups to the multi-year base timer.

Mandatory Building Prerequisites

The Keep 49 upgrade is locked until the required prerequisite structures reach level 48. Because building requirements cascade backward through your city layout, audit your grid before committing resources to avoid unexpected delays.

Wall 48: The direct prerequisite for starting Keep 49.
Rally Spot 48: Required to advance military capacity and satisfy prerequisite branches.
Victory Column and Council of State: Key structures necessary to fulfill late-game progression gates and maintain military buff paths.
Watchtower or Resource Depots: Auxiliary structures required as prerequisites for defensive wall upgrades.

Before pushing your Wall to 48, verify prerequisite research branches in the Academy. Missing an underlying technology requirement will stop the upgrade sequence even if your buildings meet the level requirements.

Resource Management and Safe Staging

Upgrading to Keep 49 requires dozens of billions of Food, Lumber, Stone, and Ore. Storing this volume as open resources invites enemy rallies and causes massive Food loss to troop upkeep.

Resource	Primary Consumption Risk	Protection and Staging Method
Food	Consumed automatically by army upkeep	Keep strictly in unopened inventory boxes until the upgrade starts
Lumber	Major volume required for Keep construction	Stockpile via secondary farming accounts and alliance tiles
Stone	Primary requirement for Wall 48 and Keep fortification	Harvest high-level alliance tiles or exchange during consumption events
Ore	Heavy requirement across wall and military structures	Clear advanced alliance resource deposits

Keep all resource boxes closed until the moment you begin the Wall and Keep builds. If you transfer stockpiles from secondary farming accounts, maintain an active 24-hour truce agreement (bubble) and use high-capacity transport marches to minimize exposure during Server War (SvS) or enemy scouting runs.

Construction Buffs and Speedup Priority

Because the base timer for Keep 49 spans several years of unbuffed time, apply all available construction reductions before pressing the upgrade button:

Assign a Politics Duty Officer: Place a high-politics general equipped with construction-speed equipment into the Keep.
Equip Monarch Gear: Switch your Monarch Crown to your highest-level variant.
Set Monarch Talents: Allocate points into construction speed within the monarch talent tree.
Trigger Alliance Devotion: Request or activate the alliance Construction Devotion buff.
Align with Events: Start the timer during a Consuming Return Event or a server building event to receive rebates on speedups and developmental items.

When funding the timer, apply specialized Construction Speedups first. Reserve universal speedups for troop training, hospital healing, or sudden event requirements. Ensure your hospital and warehouse capacities are upgraded alongside your Keep so your city remains protected against surprise attacks while unbubbled.