Generate game ideas with https://seblague.github.io/ideagenerator/ until something comes up  that can be realistically done in a week. So voice controls are probably not a good idea. Something really specific is recommended

Rules

• Everyone must generate their theme with the generator above
• Using assets you have the right to use is completely fine
• Everyone can vote. Even those who haven't submitted 

Ranking Criteria

Theme: How well the theme was used. Also games that made A game about farming set during the Renaissance, where you play as an organization of energetic electricians attempting to rule the world work should get higher score than games that did A game with unlockable achievements.

Humor: How funny the game was. Theme plays a big part in this

Fun: How fun the game was

Innovation: How creative the game was. Not the theme!

Check out Sebastian Lague's youtube channel

Also i have never hosted a game jam so give me feedback as well