SIDUS HEROES is an AAA-level MMORPG. Set in a space metaverse, where technology has merged with all living beings, it offers multiple gaming scenarios such as interstellar exploration, battles and settlements, as well as opportunities for political, social and economic development. The game has a closed economic system based on a limited emission of resources, and incorporates a 'play-to-earn' model for all its in-game items, using a two-token system.

Lyra is an automated market maker (AMM) for options, allowing traders to buy and sell options on cryptocurrencies from a pool of liquidity. Liquidity providers (LPs) deposit sUSD (a stablecoin) into one of the asset-specific Lyra Market Maker Vaults (MMVs). This liquidity is used to create two-way (buy and sell) options markets for the asset that the vault holds (e.g. ETH Market Maker Vault LPs quote options on ETH). LPs deposit liquidity into the vault to receive the fees paid when options are traded. Traders use Lyra to trade options, either buying options from or selling options to the MMV. They pay fees (in the form of the market-making spread) to LPs, as payment for their liquidity.