Games : We've made a few different games in different configurations and budgets, ranging from 10k$ to 100k$+. There are no real price as much as what you want the game to be. We will deliver the maximum we can with the budget you have and we will make sure to let you know what to expect when you send us your GDD or when we collaborate on one together.
Trailers : Trailer prices only depend on two things, how good your camera implementation is and how good the game is in terms of playability (no server crashes if Multiplayer, no constant FPS drops, etc.). If everything goes smoothly, a trailer is between 500$ and 2000$.