> For the complete documentation index, see [llms.txt](https://warena.gitbook.io/warena/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://warena.gitbook.io/warena/gameplay/phase-1-2d-tower-defence-game/guide-for-beginners/upgrade-items.md).

# Upgrade items

![](/files/dZtMMhH1rVk2mG9j6vwI)

Besides the $WARE needed to be burnt in the level up/upgrade process, these essential items like materials and minerals are also crucial in powering up your team.

📈 Level up:

* W-fragment - W-shard - W-crystal are used with the exp 10 - 50 - 100 respectively.
* Can earn by winning Adventure and Challenge mode

🤖 Upgrade skills:

* W-Shred - W-Fraction - W-Gem are used with the exp 30 - 150 - 300 respectively
* Can earn by winning Adventure and Challenge mode
* Drop rate is lower than level up items