Stack Up Pays
Incredible Technologies · Five Must-Hit-By Expansion Meters
Stack Up Pays overview
Stack Up Pays shares a five-meter expansion engine with Ascending Fortunes. Mini through Mega meters build pools of reel expansions that are used during the matching Free Games bonus.
Primary floor read: The five colored expansion meters above the reels, plus the current bet and whether multiple meters are simultaneously advanced.
How the expansion meters work
Each colored scatter can add expansion value to its corresponding meter. Public game research reports that the meters can advance by more than one expansion at a time and each has a must-hit-by boundary.
What the bonus stores
Unlike a simple free-spin counter, these meters store reel expansions. When a meter's feature triggers, the accumulated expansion pool is distributed across the Free Games, increasing reel height and ways to win.
What to inspect
Read all five meter states and look for combinations where more than one tier is materially advanced. Multi-meter states can be more complicated than evaluating a single isolated counter.
Common mistake
Do not assume the largest jackpot tier is always the best meter to chase. Remaining range, expected expansion value, bet cost and volatility all matter.
How APWebsite approaches this game
The public guide focuses on the observable state and the machine mechanic. That is intentionally different from publishing a universal “play at X” rule. The value of a state can change with wager, denomination, configuration, feature value and variance.
Research confidence: Moderate/High — multiple AP references consistently describe the same five-meter expansion engine across Stack Up Pays and Ascending Fortunes.
Related learning: Must-Hit-By Explained · How to Read an MHB Meter · Ascending Fortunes · Regal Link · 88 Fortunes
Verification and corrections
This public overview is based on available manufacturer information, cabinet help-screen observations and machine-specific research. Rules can vary by cabinet, jurisdiction, denomination and software configuration. Verify the exact machine before wagering.
Found a configuration difference or outdated detail? Email APWebsite with the exact title, casino or jurisdiction, cabinet and the rule that differed.
Unlock the full Stack Up Pays strategy
Detailed entry criteria, threshold assumptions, calculator logic where supported, configuration notes, and deeper play/pass strategy are reserved for APWebsite members.