Beware Planet Earth

Released Apr 2014

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!

72% positive · 340 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 11 Oct 2026 $4.99

Can't confirm — worth a look

We couldn't confirm these stores carry this game.

Green Man Gaming Steam key Search IndieGala Steam key Search

Prices in USD, as listed by each store.

Buying through an affiliate store helps support the site

Evaluation

Beware Planet Earth! released on April 11, 2014 as a complete tower defense package, including 46 story levels across 4 seasons, 28 bonus challenges, and exclusive Steam content. The store description presents a self-contained, fully-featured game with no mention of additional content phases or planned updates. The most recent developer communication, posted on March 6, 2026, confirms the original developer's relationship with this game is behind them. He describes it as a game from "many years ago" and is using the news post to promote a new spiritual successor title ("How many Cows do they need?!") — not to announce any new content for Beware Planet Earth! itself. This framing strongly implies development on this game concluded long ago. There are no unreleased DLC entries, no roadmap, no season pass, and no developer statements indicating future content for this game. It launched as a finished product and has remained so.

Evidence

The developer posted to announce a new game set in the same universe, describing Beware Planet Earth! as something from 'many years ago' and thanking fans for their support over the years — implying development on the original game is long concluded.

news post · Mar 6, 2026 source development ending

high

Store description presents a complete, self-contained game with 46 story levels, 28 bonus challenges, and exclusive Steam content — no mention of future updates or additional content phases.

description · Apr 11, 2014 source content shipped

medium

Media

Details

Developer

Lightmare Studio

Publisher

Jumping Ram

Achievements

Platform

Windows

Controller

—

Steam Deck

Playable

Players

Single-player

Tower Defense Strategy Casual 2D Aliens Colorful Cartoony Sci-fi Funny Arcade Epic Retro Indie Difficult Anime

About this game

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!