The trusty bookshelf is by far the most convenient way to store your research results. With 100 slots it offers a lot of room, but that comes at a price: You can only store Blueprints, Specimen Implants and Notes there. Unlike the Reinforced Steel Vault, it is affordable before the endgame. The Engram is available at Level 20, and there is no required Foundation tile.
To craft the Bookshelf, you need
- 100x Wood
- 45x Thatch
- 35x Fiber