Shell Shock is a horror-themed slot game set in a gothic castle with a mad scientist twist. The game combines elements of classic horror with science fiction, creating a unique and eerie atmosphere. The backdrop features a swampy castle ground with biohazard warnings, illuminated by flashes of lightning that highlight the gothic architecture.
The game's symbols reflect its theme, including a brain in a jar, a Tesla coil, neon elixirs, and various characters such as Igor, a young Dr. Frankenstein, and the Frankenturtle. The highest-paying regular symbol appears to be a portrait of Dr. Frankenstein, followed by other thematic symbols in descending order of value.
The Shell Shock logo serves as the Wild symbol, replacing all other symbols except the Scatter to complete winning combinations. During regular play, the Wild symbol also applies a 2X multiplier to any wins it helps create, potentially doubling players' payouts.
The Frankenturtle acts as the Scatter symbol, triggering the game's main bonus feature when three or more appear anywhere on the reels. The bonus features include:
- Free Spins: Landing 3 or more Frankenturtle Scatter symbols awards 10 Free Spins.
- Scatter Payouts: In addition to triggering Free Spins, the Scatter symbols also provide cash prizes:
- 3 Scatters: 1x total bet + 10 Free Spins
- 4 Scatters: 3x total bet + 10 Free Spins
- 5 Scatters: 100x total bet + 10 Free Spins
The game features 15 paylines, with winning combinations formed by matching symbols appearing consecutively from the leftmost reel. Only the highest win per line is paid, and all win amounts shown in the paytable are based on the current bet.
An interesting feature of Shell Shock is its variable RTP (Return to Player) percentages, offering low, medium, and high options. This allows players or operators to choose the level of theoretical return, with the highest setting offering a competitive 95.78% RTP.