Alien Robots is a 2016 NetEnt release and is more or less a standard slot game, with several twists. First of all, there are two different ways to handle paylines, and the free spins game offers Sticky Wilds and re-spins. There's just enough wrinkles in Alien Robots to make the game lots of fun to play, and the theoretical return to player is 96.60%, which is more than good enough for me. Like most NetEnt slots, Alien Robots has medium variance and pays often and is therefore easy to play. But unlike most NetEnt slots, Alien Robots does carry the potential of winning big, either through a 10,000 coin prize for landing five Red Robots or through a potentially very rewarding free spins game. Main game and paytable While the game is played on a standard 5x3 board with 15 symbols, the paylines are a big surprise. The player can choose between 1 and 30 paylines, but can also choose to play a 243 ways to win version of the game. The price you pay for 243 ways to win is double what you pay for a 30-payline game, so it's up to every player to judge the pros and the cons and choose a better version for himself. When 243 ways to win are selected, the game will pay both the payline win and the bet ways win, so for me this was a natural choice and I've decided to pay double. Minimum bet per payline is €0.01, so the minimum bet is €0.01, making Alien Robots a penny slot, and the minimum bet for 30 paylines is €0.30 while the maximum is €75. For 243 ways to win these numbers are doubled, so the maximum bet is €150 while the minimum is €0.60. Alien Robots probably gives the player greatest flexibility of all slots when it comes to bet size and paylines. Experienced players will know how to manipulate this. The game uses ten normal symbols, five of which are low-value card symbols that are almost worthless, and five are Robots. While the Blue Robot is as worthless as a card symbol, Green and Yellow Robots pay decent prizes of 1,000 coins and 3,000 coins for five-of-a-kind, and the top two symbols offer great value. Orange Robot will pay 5,000 coins, and Red Robot pays a great prize of 10,000 coins. All the symbols are nicely drawn but the game still does appear a bit flat, as there are no animations or anything that would light up the game. Most of the time it's just nicely drawn Robots sitting on your reels together with card symbols, and that's it. A very classic slot game experience. Bonus features You need three or more Flying Saucer Scatters on your reels to trigger the free spins bonus round. For three, four or five Scatters you'll get 10, 20 or 50 free spins respectively. The potential of getting 50 free spins is very exciting as the free spins are quite powerful in Alien Robots. Any Wild symbols will expand to fill their entire reel, and will then be sticky for one re-spin. This means that you're getting more free spins than you think, as the re-spins will add up. The free spins game in Alien Robots can be extremely rewarding. Conclusion Alien Robots can best be viewed as an upgraded classic slot, as classic slot players will feel right at home while playing this slot game. It's the medium variance, the chance to choose between 30 paylines and 243 ways to win, and the Sticky Wild re-spins during the free spins game that make the difference and make Alien Robots a unique slot game. I liked it myself, as the potential of winning big is there, and the Sticky Wild re-spins can make the free spins game very rewarding. Not a bad title by NetEnt, even if it's a simple game.