This game is a demo for a new type of parser.
Basically, you type in the first letter or two of a noun on the screen, which brings up some possible words that can autocomplete, which you do by hitting tab; then you hit tab more to cycle through different actions or adjectives for that noun.
This is a clever idea. I did have some trouble navigating the game though. You're basically some kind of goblin entertaining an ogre king, so there were a ton of words that I didn't understand (looking them up, it was stuff like 'burping' or 'somersaulting') and there were some typos that I think were intentional like 'vous être'.
In structure, as far as I played, the game starts with you telling poems to the ogre king, then possibly fighting his executioner guy, then exploring your living quarters, then quoting proverbs, then fighting again.
Interaction was kind of wonky for me. Almost none of the actions have predictable effects; instead, it seems like the author's goal was to come up with funny or nonsensical results for most things. It was amusing, but it was hard to plan what happened. Combat was especially rough, with many actions healing the other opponent. On the itch page, others had complained about this, and the author suggested making sure that you mix up your attacks and not follow any pattern. I couldn't do this, and died during the second duel. There was also a clock that didn't seem to do much besides making you sleep for a while.
Overall the system looks pretty good, and the game is descriptive and amusing, but the actual game mechanics are pretty hard to figure out and could be explained more clearly.