

Beware Planet Earth
Lightmare Studio · 2014 · Tower Defense, Strategy, Casual, 2D, Aliens
PC
Mostly Positive80% · 174 📉 Recent reviews down 68%
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Screenshots
About Beware Planet Earth
✦ AI summary
Defend your farm from a Martian invasion by building towers, setting traps, and blasting aliens with your Zapper in this tower defense and time management hybrid. Choose from 20 wacky machines and face off against quirky invaders across 46 story levels plus 28 bonus challenges with Steam-exclusive content.
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!
Key Features
- Exclusive content on Steam: a multitude of new levels and enemies inspired by Valve’s universe!
- Endless Fun: full story mode with 46 levels over 4 seasons, plus 28 bonus challenges!
- Simple gameplay: different difficulty modes to choose from; “Veteran Mode” for experienced players and “Normal Mode” for the beginners
- Intense action: grab your Zapper to attack the Martians and overpower your machines!
- Wacky machines: choose among 20 wacky machines; from the classic defence tower to the Helicowpter!
- Deadly enemies: over 20 quirky Martians; from the Metalhead and the Mad Scientist to the Ninja!
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
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Full review: https://thegamehoard.com/2026/05/09/picking-up-steam-beware-planet-earth-pc/ Beware Planet Earth’s tower defense gameplay is decent but a bit unambitious, the towers, lane layouts, and aliens working well enough to provide levels that require some thought to overcome… at least until you factor in the Zapper. The little ray gun adds a layer of constant involvement yet comes with the drawback of it breaking down if used too much, but with levels designed around its constant use it goes from a tool to let you be more involved in taking out Martians to a bit of a nuisance. It doesn’t require much strategy to hold down the left mouse button and the gun’s presence clearly impacted how powerful individual towers were allowed to be, Beware Planet Earth not completely sacrificing tactical tower building but losing some of its focus in pursuing a rather plain form of active involvement.1 found this helpful
An enjoyable and (not said lightly -I like tower defence but rarely find one I enjoy) good looking tower defence. What appears simple turns out to be quite challenging too. Not bad for the casual tower defencers out there.1 found this helpful
Best TD, Period!
One of the most unique and engaging tower defenses I've ever played. The different "lives" system from others in the franchise like Kingdom Rush or PvZ leads to a lot of creativity in map layout, enemy types, and defense strategies. Also, the music is phenomenal, with the main theme being the highlight for me. I left it open on my PC while I went to do something and unironically enjoyed the music playing in the background while I did stuff.
Beware Planet Earth is a humorous tower defense strategy game developed by Lightmare Studio and published by Jumping Ram. Built around a playful science-fiction premise, the game takes the familiar mechanics of defending territory from waves of enemies and wraps them in a colorful story about aliens invading Earth for one very specific reason: stealing cows. Rather than presenting a serious alien invasion scenario, the game leans fully into a lighthearted and cartoonish tone, turning the classic trope of UFOs abducting livestock into the central conflict of a whimsical strategy adventure. The result is a tower defense experience that balances traditional mechanics with comedic storytelling and charming presentation. The narrative begins in a quiet countryside where strange crop circles begin appearing overnight, followed by mysterious cow disappearances. Soon it becomes clear that extraterrestrial visitors have arrived and are systematically abducting cattle using their bizarre technology. Players step into the role of the farm’s unlikely defender, constructing a network of machines designed to stop the invading Martians before they can reach the cows. Assisting the player through…
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