How good is deepseek at coding and game Dev?

I do a lot of game development in ue5, not so much coding but I do use blueprints and large resources. I find chatgtp excellent at game logic but not so much at large projects. Such as it's memory gets worse after around 30 extended thinking messages. How is deepseek with handling large context window and remembering previous code. What is the context token limit per chat and should I use it if I don't want to worry about pricing? Hope I can post this here and thanks for replies. Advice is welcomed 🙏 submit