Invading Vegas Revenge on Mars: Slot Overview
Invading Vegas Revenge on Mars is the third alien-themed instalment from Play'n GO, and this time the humans are fighting back. Built on a 5x3 grid with 20 paylines, it runs at medium volatility with an RTP of 96.20% and a max win of 2,500x. Bets range from 0.10 up to 50 per spin.
So the storyline goes: after aliens trashed Vegas twice (in Invading Vegas and Invading Vegas Las Christmas), a bionic cowboy heads to Mars for revenge. Visually it looks proper smart, with neon lights and a dusty Martian skyline. The main features are Walking Wild Re-Spins, Mystery Symbols, and Free Spins. Fair enough as a feature set, though I would have liked something new thrown in.
Symbols and Paytable
Low pays are four casino chips with alien symbols on them, purple, blue, green, and red. All four pay the same: 0.8x your bet for five of a kind, so nothing exciting there. Premium symbols are five alien characters that look a bit like off-world showbiz personalities. Matching five premiums pays between 1.6x and 6.4x the bet, depending on which character you land.
Wilds show up as a Space Cowboy and pay a decent 30x for five across a line. There is also a space car scatter that triggers the bonus round, plus cube-shaped mystery symbols that pop in during the walking wild feature. Not a massive paytable, but the mystery symbols and multiplier wilds do the heavy lifting when things click.
Symbol Payouts
Bonus Features Breakdown
Right, the big draw here is the Walking Wild Re-Spin. If the two leftmost or two rightmost reels fill with matching symbols but no win lands, a stacked walking wild appears on the middle reel. It then shifts one reel at a time towards the opposite edge, dropping 3 to 12 Mystery Symbols each respin. Those mystery cubes reveal either regular pay symbols or wilds carrying multipliers of x2, x3, x5, or x10. If more than one multiplier sits on the same payline, the values add together before being applied. That is where the bigger hits come from.
Key change from the earlier games: the walking wild can now move left or right depending on which side triggered it. Previously it only went one direction in the base game. Makes the respins feel a bit less random and more satisfying, honestly.
Landing 3 scatters triggers 12 Free Spins. During free spins, stacked high-pay symbols can appear on reels 1 and 2 as well as 4 and 5, compared to just the rightmost pair in the base game. You can retrigger with another 3 scatters for +12 spins each time, up to 120 total. The walking wild mechanic works identically in the bonus round.
Bonus Buy Options
Full stack of matching symbols on the two leftmost or rightmost reels without a win triggers a walking wild on the middle reel. The wild moves one reel per respin, dropping 3 to 12 mystery symbols. Continues until it reaches the edge reel, then grants one extra respin.
Cube-shaped symbols placed by the walking wild that reveal either a regular pay symbol or a wild carrying a multiplier of x2, x3, x5, or x10. Multiple multipliers on the same payline add together.
3 scatter symbols trigger 12 free spins. High-pay stacks can now appear on reels 1 and 2 as well as 4 and 5. Retriggerable with 3 scatters for +12 spins, up to 120 maximum.
Volatility, RTP, and Max Win
Medium volatility suits a relaxed session. You get wins often enough to keep your balance ticking along without massive droughts. RTP tops out at 96.20%, but operators can pick lower settings down to 84.20%, so always check what the casino you are playing at is running. A bit annoying that such a wide range exists, but that is standard for Play'n GO these days.
Max win is 2,500x. I will be honest, that is on the low end and it is the same cap as the first two games in this series. For a medium-volatility slot it is not terrible, but if you are chasing big numbers you will probably find this underwhelming. It does mean sessions stay fairly steady, though, which is fine for casual play.