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Last Updated on 15 Oct 2026
11 min read
| Game Developer | Williams Interactive |
|---|---|
| Release Date | July 2013 |
| RTP | 92.97 |
| Volatility | - |
| Bonus Feature |
| Bonus Rounds | |
|---|---|
| Free Spins | |
| Quickspin Feature | |
| Gamble Feature | |
| Mulitplier |
| Autoplay | |
|---|---|
| Progressive Jackpot | |
| Configurable Winlines | |
| Min. Bet | - |
| Max. Bet | - |
The first thing that grabbed me in Invaders From The Planet Moolah was how wins explode, symbols tumble away, and fresh icons drop in while the UFOs hover above the reels. Under that cartoon chaos is a 5×3, 25 payline slot with a 96.00% RTP and generally rated as medium volatility.
What I like most is how consecutive cascades are not just visual flair, they are your ticket into the free spins feature where the cows really start to pay. This slot has its own pace. If you are browsing other free slots, you can compare it easily from our main slots page before you spin.
Invaders From The Planet Moolah uses a 5 reel by 3 row layout with 25 fixed paylines that pay from left to right. Spins are set per round, so every play always covers all lines.
Each spin starts with a full set of symbols, and any winning combination disappears in a cascade while the remaining icons drop down. New symbols then fall from above, which can create additional wins from a single paid spin.
The alien UFOs at the top of the screen beam down wild symbols that substitute for regular icons. This helps string together the consecutive wins needed to reach the bonus.
During free spins, the tumble mechanic remains active, so a single bonus spin can chain into several prizes. The bonus can be retriggered by hitting new sequences of consecutive wins.

Invaders From The Planet Moolah runs at a 96.00 percent RTP, which sits close to the long term average for online video slots. Over a very large number of spins, this means about 96 dollars are paid back in prizes for every 100 dollars played, although short sessions can vary a lot from this figure.
The game is generally rated as medium volatility, so it mixes smaller hits with occasional bigger streaks. You can expect some dry patches, but the cascading wins and bonus feature are designed to deliver bursts of action when they do arrive.
All prizes below are shown as multipliers of your total spin, not your line stake. Three or more matching symbols from the leftmost reel on a payline create a win.
| Symbol | 3-of-a-kind | 4-of-a-kind | 5-of-a-kind |
|---|---|---|---|
| Green Lanterns (UFO scatter-style prize) | N/A | N/A | 500x |
| Jackpot symbol | 1.2x | 6x | 30x |
| Mixed Characters (dog, grandpa, grandma, cowgirl, man) | 1x | 4x | 20x |
| Barn | 0.8x | 2x | 10x |
| Trailer | 0.6x | 1.6x | 8x |
| Truck | 0.4x | 1.2x | 6x |
| Milk | 0.2x | 0.8x | 4x |
| Chickens | 0.2x | 0.8x | 4x |
| Mailbox | 0.2x | 0.8x | 3.2x |
| Outhouse | 0.2x | 0.8x | 3.2x |
The UFO wilds substitute for regular paying symbols to help complete these combinations. The cascading reels mechanic lets several of these wins land consecutively from a single paid spin if the symbols line up in your favor.

Invaders From The Planet Moolah does not feature a separate progressive or fixed jackpot feature. The largest listed prize in the paytable is 500 times your total spin for landing five Green Lantern symbols.
Because wins can chain through the cascade mechanic in both the base game and free spins, total returns from a single spin can climb well above any one line prize. There is no published top limit shown on the base game screen, but practical peak wins rely on long streaks of consecutive cascades.
No strategy can change the random number generator in Invaders From The Planet Moolah, and every spin is independent. What you can control is how you approach your budget and how long you choose to play. That part is on you.
Running the demo showed me that the streak of four or more cascades needed for free spins can take a while to appear. When I tested it, I saw long stretches of single or double cascades, then one sudden streak that triggered the bonus and covered most of my session returns.
When I switch to real money, I start with smaller spins so that a cold stretch of spins does not empty the session balance too fast. Once I see how my session is going, I might adjust the stake slightly, but I keep it within a preset limit.
If your version of the game includes autoplay, I recommend setting modest spin counts with loss limits rather than letting it run unchecked. Remember that past results never influence future spins, so chasing losses by raising stakes after a bad run is always risky.

The art style is bright 2D cartoon, with wide eyed cows and exaggerated farmers giving the slot a playful sci fi farm feel. Behind the reels you see a nighttime rural scene with barns, fields, and a glowing sky that suggests the UFOs are circling.
On a winning cascade, symbols flash and pop out of view, then the UFOs beam down replacements which makes each chain of wins feel like a mini animation. The soundtrack uses bouncy, slightly spooky background music, and the audio highlights include cow moos and laser zap effects when the aliens abduct symbols. It fits the chaos nicely.
You can play the Invaders From The Planet Moolah demo for free right here on Gamesville with no download and no account required. This is a way to learn the features before deciding whether real money play makes sense for you.
For cash play in the United States, one option is sweepstakes casinos, which use coins and sweeps credits instead of direct cash spins and are covered on our sweepstakes casinos page. If you live in a state with regulated online casinos, you can check licensed operators on our online casinos guide and look for neutral information on free spin style offers in the free spins section.
Slots are entertainment, not a way to make money. Set a personal spending limit before you play and decide how long you want your session to last.
Use session timers, time-outs, or self-exclusion tools to help stick to your plan. If playing stops being fun or feels out of control, take a break and seek support from friends or our responsible play guide.
Invaders From The Planet Moolah is best for players who enjoy steady action from cascades and like a lighthearted theme rather than a serious, dark slot. If you like older WMS style games that rely on a central mechanic rather than a stack of side features, this one fits that profile nicely. It leans into its quirks.
The strongest part of the game in my view is how the tumble feature and UFO wilds work together to chase those streaks of four or more consecutive wins. When the reels hit a hot run, the screen fills with explosions and new symbols in a way that feels very satisfying.
The biggest negative is that the highest prizes can feel locked behind rare sequences of multiple cascades plus a strong free spins round. If you prefer frequent bonuses or more modern extras like buy features, this slot might feel a bit old school.
Even so, the 96 percent RTP and medium style volatility give it solid long term stats, and the theme has aged surprisingly well. I recommend giving the demo several hundred spins to see whether the rhythm of cascades and cow abductions fits your taste before you decide to spend real money. Take your time with it.
The RTP of Invaders From The Planet Moolah is 96.00 percent. This figure represents the theoretical long term return over many spins, not a guarantee for any single session.
Invaders From The Planet Moolah is generally rated as a medium volatility slot. This means it blends smaller and medium sized wins with occasional stronger bursts, so both shorter dry spells and sudden streaks are possible.
The main feature in Invaders From The Planet Moolah is its cascading wins system, where winning symbols disappear and new ones fall into place. Consecutive cascades trigger free spins, starting at four wins in a row, and UFO wilds help connect combinations throughout.
Invaders From The Planet Moolah has 25 fixed paylines. All lines are active on every spin, so you do not need to adjust the number of lines, only your total spin.
The largest listed single prize is 500 times your total spin for landing five Green Lantern symbols. Total returns from a single spin can grow beyond individual line wins when cascades chain together in both the base game and free spins.
Yes, you can play an Invaders From The Planet Moolah demo for free on Gamesville. The free version uses the same reels and features as real money play, so it is a good way to learn the game before spinning cash.
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