> For the complete documentation index, see [llms.txt](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/nft-assets/construction-cards/gen1.md).

# GEN1

Generation 1 (GEN1) construction cards were the first four construction cards released when NFT Battle Miners was first published. They can be obtained by opening a first-generation construction pack. There are only 4 different GEN1 templates which allow to boost the production of each resource.

<figure><img src="/files/Oh1vEVGVgunk0ERR8sFg" alt=""><figcaption><p>Overview of the Construction pack GEN1 (left) and the 4 construction it can contain.</p></figcaption></figure>

**IMPORTANT:** GEN1 CAN BE USED AS A BURNER TO IMPROVE EITHER GEN 1 OR [GEN2 ](/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/iv-nbm-nfts/nft-assets/construction-cards/gen2.md)CONSTRUCTION CARDS.