If you are new to the IERC721 token standard, AKA the NFT token standard, you might be wondering what safeTransferFrom is and how it differs from transferFrom. We will offer a quick explanation and give some examples of safe transfers in action.

Both contract and account addresses are represented as…

A CryptoCompanions Vending Machine

The CryptoDappers Vending Machine contract dispenses one item every four hours. Dapper staking rewards are calculated for each 10-minute time interval. Dapper staking slot upgrades take anywhere from hours to months. How does one keep track of time on smart contracts?


A crude, but adequate method of keeping track of…

We’re excited to announce that CryptoCompanions — a play-to-earn NFT game featuring player-versus-player (PVP) battles — will integrate Chainlink Verifiable Random Function (VRF) on the Avalanche blockchain. By integrating Chainlink’s industry-leading decentralized oracle network, we can obtain access to a tamper-proof and auditable source of randomness needed to ensure that…

Crypto-Companions battle screen. Squid-penguin-lizard totem facing off with a viper-owl-hippo totem.


Crypto-Companions is a play-to-earn blockchain PVP game to be released on the Avalanche Network, featuring thousands of unique totem-like creatures with a thirst for battle — and companionship. Train, stake, and collect unique companions, and explore a world of multifarious biomes!

Unique Gameplay and Battle Mechanics

Blue Gel Labs

Where gaming meets DeFi. https://www.bluegel.network/.

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