How would the game progress if the player evolved a creature that can invent but is not sapient or capable of language?
The most realistic solution seems to be for the game to continue in the aware stage, but with a tech editor availible. Unfortunately, it seems that this would be a lot of work for a rather rare case
Another solution could be excluding this possibility, which I feel would be unsatisfying
The best solution I can think of would be to progress to a simplified version of the awakening stage, with certain features unavailible due to the lack of language or intelligence