Coupons

== Description ==
A unique resource that can only be earned in raids. Can be exchanged for unique rewards from Engineers.
== Receiving ==
* Buy at the market.
* Since update 2.1.0 can no longer be received in raids.
== Usage ==
* Craft at .
* Production of at Raven Pavilion workbench during Raven's Path event:
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== Notes ==
* Used to upgrade co-drivers before update 0.13.80.
* Received in raids before updade 2.1.0.