There are a couple of slots and games that contribute to filling up the progress meter more slowly, so definitely check the terms and conditions before firing up a super low variance slot in an attempt at grinding out the progress meters.
As an example, Bloodsuckers, 1429 Uncharted Seas, Kings of Chicago only contribute at a 50% rate of most other video slots.
Games under the ‘’Video Slots’’ & ‘’Other Games’’ categories contribute the most towards the player’s progress. ‘’Classic Slots’’ contribute 25% less and ‘’Live Dealer’’ games contribute between 5-10% of what ‘’Video Slots’’ contribute.
Full Terms and Conditions are listed in the Guts Casino Promotional Section.