> For the complete documentation index, see [llms.txt](https://whitepaper.starmech.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.starmech.io/vi.-starmech-game/gameplay/shop.md).

# Shop

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### Resource

Using Rubies to purchase hero shards or equipment pieces, opening these boxes will yield a certain number of shards to combine into a complete piece of equipment or potentially aid in upgrading a hero.

* Free Hero Shard: You can obtain them for free (3-4 shards) by watching advertisements.
* Hero Shard Box: Contains 5-20 shards.
* Double Shard Box: Contains 50-200 shards.
* Big Hero Shard Box: Contains 250-1000 shards (top choice).
* Hero Shard Chest: Contains 600-2500 shards (best deal).

### Gold

Using rubies to exchange for gold coins.

### Ruby

You'll receive 10 rubies for free after watching a video ad. The subsequent packages are 400 rubies, 900 rubies, and 2200 rubies and more can be purchased with fiat money.

### Pack

Using rubies to buy item packs to equip your Hero:

* Assault pack: it contains 3 items only for assault heroes. There is roughly a 50% chance to get a Rare item, about 40% to get an Epic item, and a 10% chance to get a Legendary item.
* Sniper pack: it contains 3 items only for Sniper heroes. There is roughly a 50% chance to get a Rare item, about 405 to get an Epic item, and a 10% chance to get a Legendary item.
* Hitman pack: it contains 3 items only for Hitman heroes. There is roughly a 50% chance to get a Rare item, about 40% to get an Epic item, and a 10% chance to get a Legendary item.
* Tanker pack: it contains 3 items only for Tanker heroes. There is roughly a 50% chance to get a Rare item, about 40% to get an Epic item, and a 10% chance to get a Legendary item.
* Merc pack: it contains 3 items only for Merc Heroes. There is roughly a 50% chance to get a Rare item, about 40% to get an Epic item, and a 10% chance to get a Legendary item.