With Unity, for instance, it is very easy to learn developing games and game apps on Unity, and then you can launch. With these game development software, developers can create games that support in-world economy with their own cryptocurrencies or tokens that can be used to but game assets and be exchanged or traded with others on cryptocurrency exchanges or directly with fiat.
The in-game currencies are also used to incentivize players and encourage further play and further loyalty.
Below are some of the Altcoins for video and other games
GamesCredit (GAME) is a blockchain-based virtual currency and wallet that lets gamers to buy and sell games and in-game items faster, safer and more privately than using credit cards. It facilitates payments for up to 60 hours.
For developers, while Google Play and Apple takes a 30 percent cut, GamesCredit mobile app takes only 10 percent.
For players, it uses a variety of deposit options including including Gamecredits. Players can earn credits and can transfer them in another game.
GameCredits Foundation also develops games for the ecosystem.
Chimaera is a game development and building platform that is based on blockchain so it is used to build decentralized games. Game developers can even issue their own game currencies that can be traded with CHI or other chimaera game coins/assets.
It uses Trustless Off-Chain Scaling for games (Game Channels) and Ephemeral Timestamps to overcome scaling issues on blockchain.
Besides gaming applications, it can be used for other functionality including private messaging, social media, encrypted file sharing and torrent tracking, decentralized applications, software licensing and selling of games and applications or for authentication systems.
It also supports wallets, human mining applications, game search, hardware mining, and trading of game assets.
Spells of Genesis (SoG) is the first blockchain-based trading card game -- it is a blockchain-based mobile game that brings deck collection and strategy and arcade-style gaming aspects. With it, you can collect cards, trade or exchange them with other players and collectors. You can build teams and test ability and strategy skill in battles.
It uses BitCrystals (BCY), for its in-game economy. The two digital assets BitCrystals and Spells of Genesis are based on Counterparty, a blockchain platform that allows creation of custom tokens or altcoins. The BitCrystals tokens in SoG can be traded on the blockchain or used to buy game assets and cards inside of SoG. The altcoins and cards are managed using the Book of Orbs.
Everdreamsoft SA, the creator of the game, is also behind Moonga, another mobile game app.
Huntercoin was developed in February 2014 as a test of the blockchain’s application in gaming. Development still continues.
The open-source cryptocurrency is collected or mined in a virtual universe built on top of blockchain. Termed as a Human or AI Mining, involves a Player vs Player combat element to fight over resources.
Most coins are generated and collected within the game rather than block reward. Players are enticed to collect Huntercoins on the map. These Huntercoins can be brought to a spawn area and redeemed into the Huntercoin wallet. From there, these coins are used like any other cryptocurrency or to create new Hunters.
The collected coins are gotten from "killed" players and if a player is "killed", 4% will go to the proof-of-work miners while the rest are up for grabs by other players. Players kill one another using the kamikaze attack which requires more than one hunter and skilled timing and coordination.
About 42 million HUCs will be mined. It has a 1 minute block time. Out of the 10 coins per block, 1 goes to miners. Block rewards half after 4 years.
It now uses a Third Party Unity3d Client for Human Mining (gaming). The coin employs a dual proof-of-work algorithm — SHA-256 and Scrypt.
Motocoin is faciliating decentralization. Because players do not meet in the virtual space, most of the in-game events do not get stored on the Motocoin blockchain. This is in contrast to the Huntercoin blockchain. The blockchain tracks the person who beat the game first for each block.
It was the first to implement proof of play protocol. A simple one-player game is contained on the wallet client to let users collect Motocoin in time using a motorbike. The first collector mines the next block. So the order of transactions is decided by the winner and not the person who finds a small enough hash value.
MobileGo Coin was developed two years ago and started with about 300 mobile games but had already registered 1000 games in 2017. The digital currency allows players of an online game to purchase game content from those games. Many online games are already using this coin, and players are able to purchase it using credit card or other payment methods.
It is based on Tidey, Liqui and AllCoin.
The tokens are used to reward and promote active participation and player loyalty on the gaming platforms. It was created and published by GamesCredit with the help of Datcroft LTD. Payouts take 60 hours. Game manufacturers pay ten percent of the purchase price.
Nexiums are ERC-20 compliant tokens on Ethereum blockchain. It can be used in Mist wallet and can be used to buy all assets of Beyond the Void, an upcoming real-time strategy video game. In this game, two players can compete and play in E-sport tournaments.
The company is also creating a full ecosystem including various assets using several games with different implementations.
Rare Pepe Party
Rare Pepe Party is a Trading Card Game (TCG) with role playing elements and is inspired by Hearthstone and the Pokemon series. The Rare Party coins are Counterparty for the Pepecash-based game, pepe.party.
The coins can be purchased on exchanges and be used to buy assets. There is also a wallet for the coins. RarePepe Avatar assets, which are procedurally generated, unique and non-fungible tokens can be used in-game and traded by players.
Bitquest is a "Survival" style Minecraft server which has a Bitcoin economy. On this platform, you can buy, sell and trade items and crafts using Bitcoin micropayments with a Bitcoin wallet.
Further in-game tokens and developments are coming soon.
There are many upcoming game-based tokens and related platforms used in video games.
For instance, Stratis started a journey to integrate with Unity game engine in December 2016. This move would allow in-game transactions so users can buy or sell goods or operate a marketplace. Stratis also launched two Stratis wallet-related projects. Stratis UNITY SDK will be open source and licensed under MIT. Thus developers can use the SDK to develop games that support Stratis and other cryptocurrencies in future.