Play Infinity Nikki Duo: Is It Possible?

Based on the available information, Infinity Nikki does not currently have a traditional multiplayer mode that allows players to play together in real-time. The game is primarily a single-player experience. However, there are some social features that allow limited interaction between players:

1. Friend System: Players can add friends using friend codes and view each other's profiles.
2. Messaging: Friends can exchange messages freely within the game.
3. Photo Sharing: Players can share photos that appear as "hourglasses of memory" in other players' worlds. These can be liked and used to send friend requests.
4. Group Photos: While not true multiplayer, players can take photos with projections of other players' characters, creating the illusion of playing together.

It's worth noting that there was some initial confusion about multiplayer capabilities. The PlayStation store listing initially mentioned "five online players" but was later revised to "1 online player". While the developers haven't officially confirmed plans for co-op multiplayer, they also haven't ruled it out for future updates.

For now, Infinity Nikki remains a single-player game with some asynchronous social features, but no direct multiplayer gameplay.