experience, here is a breakdown of what the complete game includes following its final content updates: The "Full" Hollow Knight Experience

: Confers immunity to hazardous acid pools found throughout the map. Spells and Combat arts

Defeating essential story bosses and optional bosses (e.g., False Knight, Hornet, Mantis Lords, Soul Master, Broken Vessel, Hive Knight).

Before you can tackle the final challenges, you need to reach peak power.

: Collect Mothwing Cloak, Mantis Claw, Crystal Heart, Monarch Wings, Isma’s Tear, and Shade Cloak (+12%).

While there is no specific official release or achievement known as "1031," your request likely refers to , a notable early patch that refined the original Hollow Knight

Hollow Knight 1.0.3.1 live for all players - Steam Community

Fixed projectiles (like Soul Twister orbs) that previously could get stuck in mid-air indefinitely. Added an initial language menu on the first game launch.