Original author: Surf, a cryptocurrency researcher.
Translated by: Leo, BlockBeats.
Hackathon has always been a great way for the cryptocurrency industry to discover good projects. Recently, the Autonomous Worlds Hackathon hosted by ETHGlobal has come to an end. Cryptocurrency researcher Surf analyzed the top 5 high-quality game projects before the hackathon and compiled them as follows:

First of all, let's talk about the background of the hackathon: mainly focused on the GameFi project on ETH; participants use MUD, which is a programming language used to develop on-chain games on Ethereum, and a new framework designed specifically for on-chain games; a total of $50,000 in prizes; developing a diverse world by building on-chain games, worlds, and art projects.
This hackathon has a total of 132 participating projects, with 4 main award categories, namely:
-Optimism - Running MUD applications on the OP stack (3 winners)
-0xPARC - Advanced Cryptography for MUDs (3 winners)
-Lattice - MUD Most Creative Use (3 Winners)
-NFT Storage - Best Applications for Using Storage Assistants (10 Winners)
Here are the top 5 projects that I have analyzed:

Pledger is a social game whose core idea revolves around making positive commitments in public places. The game allows users to make commitments to themselves, prove to the community that they have fulfilled their commitments, and earn reputation from their high achievements. The goal of the game is to gain reputation, which is an in-game metric used to evaluate achievements. Reputation is earned by proving and rating your commitments by other users.
This project uses NFT storage to upload images to IPFS and stores the content hash as part of the commitment "submission artifacts", which is convenient for users and maximizes decentralization.

Autonomous Game of Lif is a decentralized, multiplayer version of Conway's Game of Life on the blockchain. The game is built on MUD v2 on OP Goerli and optimized for storage space, supporting both single-player and multiplayer modes. Conway refers to John Horton Conway, a British mathematician and the creator of the famous "Conway's Game of Life".

Trade Wars is an on-chain interactive 2D game that uses MUD V2 and React frontend. It allows for maritime trading, battles, and resource arbitrage in a self-governing, geographically-bound AMM economic model. Players can engage in battles by attacking the on-chain system.

OPCraft2 is similar to the sandbox video game Minecraft, aimed at expanding OPCraft using blocks created by new users. The first block is Redstone, which users can specify how it transforms into other blocks and place them in the world. The game also draws inspiration from Minecraft's motivational qualities, enhancing its gameplay and motivation, allowing players to build complex circuits just like in Minecraft.

Muttendo is a MUD application where users can play retro Nintendo games (as well as any other games that can be run on the NES console). The game is characterized by short play times, and each game is sent to the chain for verification and creates a "checkpoint" of its state.
Interestingly, any player can start the game from any checkpoint created by other players. For example, you can restart "Super Mario" from the last checkpoint before death, or you can start from someone else's checkpoint. The game interface is simple, requiring only a display for the game and a chart coordinate linking each checkpoint to the last game.
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