Hammerstorm
Hammerstorm is a Viking-themed video slot by Pragmatic Play. The core gameplay revolves around a Respins feature that can trigger randomly after collecting lightning symbols or by landing a Thor symbol. During the bonus, a roaming 2x2 collection zone gathers symbol prizes, expanding up to 5x5 as more symbols are collected. Additional active modifiers can double collections, expand the grid to 7x7, or award extra spins.
RTP published by the studio / Hammerstorm
96.5%
Scale starts at 95% · other versions not published
Figures: Pragmatic Play game page, Pragmatic Play demo game, checked October 5, 2026; each value is linked to its page in the game facts table. Artwork © Pragmatic Play; image file from the Slots-Info slot database, not supplied by the studio.
10,000×
Max win, × stake
1
RTP version published · others not published
Game facts
| Metric | Value |
|---|---|
| Studio | Pragmatic Play1 |
| RTP versions | 96.5%1 |
| Other RTP versions | Not published by the studio |
| Volatility | Not published |
| Max win | 10,000× stake2 |
| Bet range | Not published by the studio |
| Layout | Not published |
| Features | Respins, Collection Zone, Modifiers, Ante bet1 |
| Bonus buy | Not published by the studio |
| Release date | Not published by the studio |
Numbers link each value to the page it comes from. “Not published” means the studio does not state it; we add it when it does and never estimate a spec. Figures from casino sites are not used.
RTP versions
Pragmatic Play publishes one RTP setting for Hammerstorm: 96.5%. Other RTP versions are not published by the studio. Check the game’s help or paytable screen at your casino to see which version it runs.
| RTP version | House edge | Return per $100, long run | vs highest |
|---|---|---|---|
| 96.5% (highest) | 3.50% | $96.50 | — |
House edge = 100% minus RTP. RTP is a long-run average across all players, not a prediction for a session.
Features
- Respins
- Collection Zone
- Modifiers
- Ante bet
Where it’s available
Not confirmed. Availability in regulated North American markets is not confirmed yet.
Regulated markets only; availability varies by casino.
