Phantom Asylum

A Collection Meter is a system where a progress bar or gauge (meter) is present on the game screen, which fills up each time the player collects specific symbols or performs certain actions. The core of this feature is to provide the player with a long-term goal that goes beyond the success/failure of a single spin. When the meter is full, an instant prize or a special bonus is awarded as a reward. This provides players with a growth-type fun, similar to 'leveling up' or 'completing a quest'.

A Multiplier Symbol is a special symbol that doesn't form winning combinations on its own, but provides a random multiplier value just by appearing on the reels. The core of this feature is its role as a 'seasoning' that amplifies an ordinary win into a massive prize worth tens or hundreds of times more when it appears alongside a regular win.