Cyrus The Virus

Cyrus The Virus slot poster
Rating
- /10
RTP
96.30%
Volatility
HIGH
Max win
2,000×
Hit freq
-
Grid
-
Bet
-
Released
2015-05-01
BacteriaCartoonsGreenHorrorViruses

A playable demo is not available in your region.

Our take

Yggdrasil's arcade-style slot features expanding wilds, bidirectional paylines, and 96.30% RTP across a 5-reel, 3-row grid.

Cyrus the Virus is a colourful arcade video slot from Yggdrasil Gaming that eschews traditional left-to-right paylines in favour of a bidirectional model—five lines pay left-to-right, five pay right-to-left, and the middle reel stops last for added tension. This design creates an unusual cadence that some players find refreshing.

The slot's theme is bacteria and viruses rendered in a cartoonish, almost comical style rather than grotesque. Bright greens and exaggerated animations dominate, and the soundtrack emphasises important events: wins, near-misses, expanding wild triggers, and re-spins. The game uses stacked symbols, which allow full-reel fills to land and create cascading wins.

The key feature is the expanding wild on the middle reel, which triggers a re-spin when it lands. Given the middle reel stops last, landing the expanding wild mid-spin creates genuine excitement, though the mechanic remains relatively simple. The 96.30% RTP is solid, and high volatility pairs well with the 2000× max-win cap, positioning this as a game for players with steady nerve.

Pros

  • Bidirectional paylines (left and right) create gameplay variety
  • Middle-reel-stops-last mechanic adds suspense to each spin
  • Expanding wild re-spin feature triggers frequently enough to remain engaging
  • 96.30% RTP is competitive in the high-volatility category

Cons

  • Theme may feel dated compared to modern slot aesthetics
  • Max win of 2000× is conservative for modern high-volatility slots
  • Bidirectional paylines can confuse new players unfamiliar with the mechanic
  • Limited feature depth beyond expanding wild re-spins

Math & maxes

Math breakdown

Volatility score
3 / 5
Max win
2,000x the stake
FAQ
How do the bidirectional paylines work?

Five paylines pay from left to right, five pay right to left, so wins can form in either direction.

Why does the middle reel stop last?

The delayed middle-reel stop is designed to build tension, often creating near-miss animations or last-second wins.

Does the expanding wild re-spin guarantee a win?

No; the re-spin is a free additional spin, but wins depend on symbol alignment as usual.