**2. Related work**

Games based on blockchains, such as Bitcoin or Ethereum, are already popular today and do not represent a novelty. They are particularly popular because their rules are stored within the blockchain and are, therefore, transparent for all the participants [5]. There is a distinction between fully decentralized implemented games and a traditional game design approach paired with blockchain technology [6]. The former is characterized by a simple game structure, with clear rules and low complexity. An example is the game *CryptoKitties* [7]. A hybrid approach is often used, consisting of a combination of traditional methods and the blockchain.

*A Usability Analysis of the DAO Concept Based on the Case Study of a Blockchain Game DOI: http://dx.doi.org/10.5772/intechopen.105347*

As described earlier, the DAO approach is not a fundamental innovation within the blockchain environment (see Section 1). For example, Soichiro Takagi describes numerous use cases for DAOs in 2017. Among them are approaches such as *Arcade City*<sup>1</sup> (a ride-sharing platform), *Open Bazaar*<sup>2</sup> (an e-commerce platform), and *The DAO*, which is an investment fund that invests in various companies while letting shareholders (DAO token holders) participate in votings [8]. *The DAO* has since been discontinued due to security vulnerabilities and the resulting loss of trust toward the DAO [9].

At the time of writing, no references to a game that uses the DAO principle as a central game feature could be found; therefore, it can be assumed that the influence of the DAO principle on usability has not been investigated so far. Thus, this relation represents an innovation within blockchain games as well as a clear differentiation from other papers.
