Fix the threading error of the Hufu Pyramid model Improve the material of the Khufu Pyramid

Increased difficulty, with occasional spikes or drops of drops during climbing, requiring users to avoid spikes horizontally or catch drops

1. Add multiplayer mode to achieve "friends climbing together" (If friends play at the same time, they can see each other) Combined with the Steam friend panel, it is possible to play climbing while having voice chat 2. Fix the "grip bug" to make the grip more precise 3. Grip prompt sound effect is more real-time 4. Fix the phenomenon of "mold piercing BUG"

Improve the glass curtain effect and fix some bugs

1. Update the latest virtual hand by adding a middle indicator light that indicates that the yellow light is not grabable and the green light is grabable. 2. Increase environmental city and wind sound effects. 3. Add operation prompt text to the initial level 4. Improve walking and movement methods