grpc-dotnet VS bloomrpc

Given it's a binary serialization framework, it should not be too difficult, because the domain is well-explored and numerous libraries exist in C# which address same goals that Fury does.

More popular/newer examples are https://github.com/Cysharp/MemoryPack (which is similar to Fury with its own spec, C#-code first schema), https://github.com/MessagePack-CSharp/MessagePack-CSharp or even gRPC / Protobuf tooling https://github.com/grpc/grpc-dotnet

And I used Unity because I wanted a tool/engine that I can use to build the game for multiple platforms at once, however, after a while I realized that the game is really simple and I'm not utilizing Unity. Actually, it was quite the opposite, the performance of the game (when it comes to simple animations like drag and drop) was not that good, the size was large, and some tools like gRPC-net are not maintained anymore for Unity.

You can refer to this grpc spa example. It also demonstrates how to use grpc instead of restful API to communicate with dotnet backends.

Why another one? I'm working with gRPC every day and for my opinion all existed GUI clients do not well designed or do not have fully gRPC features support. And some of them like BloomRPC unfortunately are unmaintained.

There’s also BloomRPC, which is like Postman/Insomnia for GRPC:

https://github.com/bloomrpc/bloomrpc

Can recommend bloomrpc is good GUI Client for GRPC Services. Grpc service handlers:

I would like to introduce you to a gRPC client tool(pgt) for your own use, it is used similarly to postman/bloomrpc.

Hey! Not at all. There is a wonderful tool called BloomRPC I mainly use this. Very recently Postman announced that they will support gRPC too. Postman Blog

The best alternative I found is BloomRPC

You can also play with the gRPC API, the nicest interface I found was Bloomrpc. Have fun!