The document provides 20 questions that game developers should ask themselves and their team if they want to be successful. Some of the key questions addressed include: spending time ensuring the first 15 minutes of the game are engaging; understanding where potential players are and how to reach them; constantly testing the game with new players; preparing marketing materials and pitches; understanding the market and competitors; focusing on retention, virality, and revenue strategies; and getting feedback from influencers like YouTubers and streamers. The document emphasizes the importance of research, preparation, and continual improvement for game studios.