City of Zion is launching its second

dAPPs Competition

And we want you to get involved

The City of Zion council is promoting a decentralised apps (dApps) competition to further elevate the NEO developer community.



Total Gas Prize

Up to 10 Winners

receiving 1350 gas each


Submission starts

25th of January 2018


Submission deadline

25th of February 2018

Competition details

The City of Zion (COZ) Council is happy to promote the second NEO dApps competition. Individual developers or teams are invited to join the NEO Discord #develop channel and submit their work to compete for 10 prizes of 1350 GAS. Winners of the #1 competition may submit apps to be judged, but will not be eligible for prizes.

Entry Submissions

Submissions will open on 25 January 2018 and close on 25 February 2018.

Any entries after this deadline will not be accepted as part of this competition.

Applications can be made in teams or by individuals. Winners will be selected as per the voting process laid out in City of Zion governance item 7.

Evaluated topics:

- Smart contract application novelty and technical impressiveness.

- Overall impact and importance to ecosystem.

- Quality of documentation (english required).

- Community presence (participation on CoZ channels).

Submission requirements

All submissions should be a working minimal viable product (MVP). The dApps submitted should have been demonstrated to work on testnet environments to be eligible for rewards. Smart contract code must be MIT licensed and properly documented. The remainder of the business logic, or supporting features around it can be fully proprietary.

Competition prizes

On the 9th of March 2018 the City of Zion council will announce a list of 10 winners in Discord and on this competition page. Each winner will receive 1350 GAS to launch their applications, from which at least 500 GAS should be used to deploy the dApp.


Source code for winners of last competition can be found in here. For the submission the City of Zion council will provide testnet NEO and GAS for developers and teams on our Discord.

Support Neo Stack Exchange!

The Neo Blockchain Stack Exchange site was proposed in order to give developers like you a place to ask questions, get answers, and discuss the Neo blockchain with each other. We're about halfway there to getting the site to Beta status, and every commit to the proposal helps. Commit to the Neo Blockchain proposal here!


City of Zion (CoZ) is a global community of open source enthusiasts for the NEO blockchain, with the shared goal of helping NEO achieve its full potential. See our governance page for more information about our community. Our name comes from the last human city in the Matrix films.

Good Luck!

City of Zion Council