> For the complete documentation index, see [llms.txt](https://whitepaper.runehero.io/rune-hero/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.runehero.io/rune-hero/learn-more/faq.md).
# FAQ
### What is Season 0?
Season 0 is a limited-time pre-test where players can experience the full RuneHero gameplay, compete in seasonal content, and earn rewards for CBT2.
### How do I participate in Season 0?
Join the game, earn Soul Shards by playing, convert them into Season Gems, and compete for rewards at the end of the season
### What is energy
Energy is the main resource for all activities in RuneHero. You spend it on **life skills, dungeons, PvP, and other in-game actions**. Learn more [here](https://whitepaper.runehero.io/rune-hero/gameplay/energy).
### How to Increase Energy?
* **Purchase Arcane Crystals (NFTs)** to boost daily Energy: [Buy on OpenSea](https://opensea.io/collection/runehero-arcanecrystal)
* **Rent Arcane Crystals** from the marketplace to gain extra Energy without buying.
💡 You can also **charge Arcane Crystals with Dust** for additional Energy each day.
### Which platforms will the game be released on?
the game will be released on PC to ensure a deep gaming experience
Download Link:
### Do I need NFTs to earn rewards?
No, NFTs are optional and not required to participate.
### Is there a leaderboard?
Not exactly. Instead of a traditional leaderboard, **Season Treasure rewards are distributed based on the amount of Season Gems you hold** — the more gems, the bigger your reward.
### Do I need Battle Pass?
Battle Pass is required to claim rewards and the battle Pass purchased in Season 0 will be automatically activated in CBT2
### What is the lottery system?
A lottery is held every 3 days where players can win **USDT, Soul Shards, rare materials, or NFTs**. \
Only Battle Pass players can claim lottery rewards
### Is there a friend invite system?
Yes, inviting friends can grant bonus rewards.