Sostrate

Build Application

Sostrate's effect — fortresses build in 25% less time — is the kind of bonus that rewards players who plan their build order around a single throughput vector rather than spreading attention thin.

Lower-skill matches often undervalue this advisor; at competitive tiers the effect becomes a measurable swing in resource graphs and unit counts.

Players coming back to Age of Empires Online will find Sostrate still relevant in current meta builds, especially those leaning into the construction archetype.

Name Origin

From a flavor standpoint, Sostrate belongs to the Multi-civilization lineage of advisors, connected to the mixed historical tradition spanning multiple cultures. Visual and audio cues in-game reinforce this association.

Stacking Partners

Within the construction archetype, several advisors layer cleanly with Sostrate. Players running a focused construction build often rotate one of these as a second slot:

• Cyric (Uncommon, Age IV) — Walls have 12% more health
• Bes (Uncommon, Age II) — Walls cost 33% less and build in 30% less time
• Xanthe (Uncommon, Age IV) — Fortresses have 30% more health and see 70% farther

Comparable Uncommon Options

If you want Uncommon-tier alternatives that take your build in a different direction than Sostrate, these advisors offer distinct strategic angles:

• Bahadur — Age IV, military focused
• Horus — Age II, utility focused
• Heron — Age II, military focused
• Tawaret — Age IV, military focused
• Ligeia — Age III, utility focused

When Age III Matters

Age III is the Iron Age — your civilization is fully developed and strategic decisions revolve around army composition, resource allocation, and timing attacks.

Unlocking Sostrate

Sostrate appears in player rotations within the first 10-20 hours of focused play, usually as an early-game reward or store pickup.