Comparison

DefCom TD vs Alien Defense

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

DefCom TD

A 3D tower defense and real-time strategy survival game. Build your base, gather resources, and defend against endless enemy waves on a randomly generated map. Enjoy intuitive controls and pleasant graphics without ads or in-app purchases.

Highlights
  • Mix of TD and RTS gameplay
  • Varied enemy types (infantry to aviation)
  • Randomly generated maps
  • 3D graphics and sound
  • Simple, intuitive controls
  • No ads or in-app purchases
Read full description

DefCom TD offers an exhilarating blend of tower defense and real-time strategy, delivering an immersive survival experience. Engage in intense battles on dynamically generated maps as you construct your base, gather vital resources, and fend off relentless waves of adversaries. Key Features: • Uniquely fusing TD and RTS genres for an innovative gameplay experience • Encounter a diverse range of enemies, from infantry units to formidable aviation forces • Explore endlessly diverse maps generated with each new game • Immerse yourself in captivating 3D graphics and immersive sound design • Intuitive controls designed for seamless gameplay • Enjoy an ad-free and In-App Purchase-free gaming environment Strategize, adapt, and overcome the odds in DefCom TD. Will you rise as the ultimate defender? The challenge awaits! Good luck and have fun!

About

Alien Defense

Features
Read full description

Alien swarms are closing in. Build your base, raise an army and hold the line in real-time sci-fi strategy. BUILD AND DEFEND - Construct and upgrade buildings to train troops and protect your command center. - Mine crystals, train your forces and push back wave after wave of alien invaders across a growing campaign. PICK YOUR BUILD EVERY WAVE - Pick new buildings and army upgrades as the battle unfolds. - Chase powerful upgrades to shape a different strategy every run. COMMAND A SCI-FI ARMY - Unlock infantry, armored vehicles, mechs and air units, each with its own role on the battlefield. - Turn the tide with battlefield skills: repair your base or call in a nuclear strike. GROW STRONGER - Upgrade every building and level up your units between battles. - Research a tech tree to boost damage, health, mining and critical hits. - Open supply chests for blueprints and unit shards. CLIMB THE ARENA RANKS - Take your army into the Arena, battle rival commanders and earn new ranks. PLAY ANYWHERE - Play in your language: switch anytime in Settings. - Play offline, no Wi-Fi needed.

Screenshots

DefCom TD4 screens
Alien Defense4 screens

Verdict

The call

The clearest difference is price: Alien Defense at Free against DefCom TD's $1.99. Alien Defense also leads on update cadence (every 3 weeks vs every 41 months). DefCom TD's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Alien Defense is free to download; DefCom TD costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DefCom TD ships an update every 41 months, Alien Defense every 3 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
DefCom TD versus Alien Defense: the parameters behind the verdict, then further details
ParameterDefCom TDAlien Defense
Price$1.99Free — better
Rating4.7 (24 ratings) — better—
Positive reviews76.5% of reviews—
Number of ratings24 — better—
Update frequencyEvery 41 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size61 MB263 MB
Age rating9+9+
DeveloperGame Dev TeamPLAYGENIX EDTECH INC.

In-app purchases

None

DefCom TD

No in-app purchases

None

Alien Defense

No in-app purchases

Questions

Is DefCom TD free?
DefCom TD costs $1.99, with no in-app purchases.
Is Alien Defense free?
Alien Defense is free to download, with no in-app purchases.
Do DefCom TD or Alien Defense have ads?
Alien Defense shows ads; DefCom TD does not.
Which is updated more often, DefCom TD or Alien Defense?
DefCom TD ships an update every 41 months, and Alien Defense every 3 weeks. Most recently, DefCom TD was updated on October 24, 2026 and Alien Defense on October 24, 2026.

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