What is TSO?

Touhou Survival Open is an annual Touhou Project survival tournament organized by George with support from the worldwide Touhou community.

Unlike score attacks or reset-heavy grinds, TSO demands pure consistency: players get one credit, no resets. Credits must be finished out, no matter what. Even if you die in Stage 1

Players compete across different official Touhou games. Using a Penalty Score Metric system, the playing field is leveled between all games.