Most providers are incompatible because they don't correctly implement OpenRouter's prefill feature, which this game depends on.
DeepSeek-V3-0324 used to have 3 compatible providers (SiliconFlow, Novita, AtlasCloud), but Novita and AtlasCloud seem to randomly return bad outputs every few inputs now. I recommend simply using SiliconFlow.
If you somehow force the game into using an incompatible provider, you might eventually run into very strange behaviors.