GameCoin (GMC) is a digital currency targeted towards the gaming community. GMC tokens go on sale at the end of September through the GameCoin ICO. GameCoin aims to increase the revenue of the gaming industry by 3 times – or 300 billion dollars per year. It aims to allow players to earn money from their hobby. And, within a year, the developers claim the capitalization of GameCoin will “exceed and billion dollars and will continue to grow rapidly.” GameCoin is being proposed as a way to monetize the world of free gaming. The GameCoin whitepaper explains that the majority of gaming revenue comes from 10% of users. Today, developers are struggling to monetize the remaining 90% of users. GameCoin claims to have found a way to do that using blockchain technology. Basically, GameCoin’s idea is to allow each game developer to create their own cryptocurrency. This cryptocurrency is used as in-game money. The developers can create this cryptocurrency at virtually no cost to themselves – it’s just a digital token that has value in the game. However, by the time it circulates through gamers, the token will have value because it can be used to pay for in-game items. In more straightforward terms, GameCoin plans to make it easy for developers to create a secure in-game currency. It appears that these cryptocurrencies will operate as forks on the GameCoin blockchain. Each developer will be able to make their own fork – so gamers can easily apply their GWC tokens to any game of their choice (the GameCoin wallet will support all forks).
Zcoin (XZC) is a cryptocurrency focused on privacy and decentralization. It is the first coin to implement the Zerocoin protocol that enables financial privacy through the power of zero knowledge proofs with a focus on making privacy easy to use. It is also set to be the first to release MTP an ASIC resistant, anti-botnet proof of work algorithm that remains lightweight to verify to ensure fair distribution of coins and decentralized security. Zcoin is an open source decentralized cryptocurrency that focuses on achieving privacy and anonymity for its users while transacting. To achieve this privacy and anonymity, Zcoin uses zero-knowledge proofs via Zerocoin protocol which is one of the most cited cryptography papers at this point in time. In other words, when you transact using Bitcoin or Ethereum or something similar, your transaction history is always linked to your coins by default which makes you vulnerable. That, because all it takes is one link to your personal information or IP to find out the origin of the coins.However, if you transact using Zcoin’s Zerocoin feature, none of your transaction histories is linked to the actual coins and only the receiver and sender know that you have actually exchanged funds. Zerocoin is a cryptocurrency proposed by Johns Hopkins University professor Matthew D. Green and graduate students Ian Miers and Christina Garman as an extension to the Bitcoin protocol that would add true cryptographic anonymity to Bitcoin transactions. Zerocoin was first implemented into a fully functional cryptocurrency released to the public by Poramin Insom, as Zcoin who is also the lead developer, in September 2016. At the initial stage, Zcoin uses the Lyra2z algorithm for proof of work, then they will transition to a Merkle Tree proof of work algorithm, known as MTP. MTP is a unique memory hard algorithm that aims to solve several problems. Memory hard algorithms help prevent the development of ASICs which lead to centralized mining farms. Memory hard algorithms also prevent the use of botnets infecting computers for mining purposes. If a botnet was using up multiple gigs of memory, you’d be likely to notice something is wrong. “The basic concept is that it should establish the same price/cost for a single computation unit on all platforms meaning that there is no single device that should gain a significant advantage over another for the same price hence promoting egalitarian computing.