The Relic Conservatory is a relic civil food production building that also stores food when upgraded to a certain level. It is similar to the Relic Greenhouse except that this building funnily enough is green, and starts off with less Construction tokens but more Upgrade tokens. It was released on November 25, 2019.
Although the functions of the building and its upgrade benefits are exactly the same as the Relic Greenhouse, the resource amount to upgrade it is different.
The Relic greenhouse starts off with Construction tokens to build it at level 1, and then uses Upgrade tokens only after that.
After building the level 1 Relic conservatory, the upgrade requirements are 25 construction tokens and 113 upgrade tokens. This leads to the assumption that each upgrade will cost some construction tokens and some upgrade tokens, unlike the relic greenhouse which uses a lot of upgrade tokens only. However, the amount of construction tokens and upgrade tokens needed increases greatly every level. It is recommended that you build and maxed the greenhouses first before you build a relic conservatory. It cost 1875 Construction Token and 9315 Upgrade Tokens at total.