Console, computer, mobile... an umbrella term for the hardware architecture and the software framework on which a game is run. Not to be confused with the genre of the same name.
A platform defines many characteristics of the game's development, not the least of which is the accessibility of the game to your audience. The choice of platform can greatly impact the gameplay you program, the stylistic approach you take, and the ease of applying patches or modifications to the game.
The main class of questions with this tag deal with the choice of platform when designing a game for certain parameters. When you are designing for a specific platform, you should ideally use the appropriate tag. When you are concerned about cross-platform programming, use the cross-platform tag.
The most common platforms in modern days, and some of the corresponding tags, include:
- Mobile Devices
If your question is about the Platform game genre, use platform-games.