Comparison

Mars Defence vs Yard Defense

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

Head to head
About

Mars Defence

Defend Mars from alien invaders in this tower defense strategy game. Build and upgrade defensive towers, manage robots for resource gathering, and develop technologies to survive waves of enemies and complete the Martian campaign.

Highlights
  • 25 days of survival campaign
  • 5 tower types
  • Robot management for resource gathering
  • Economic strategy with resource mining
  • 8 enemy types
  • Tower and technology upgrade system
  • Persistent progress across missions
Read full description

Defend Mars from alien invasion! In this thrilling tower defense strategy game, you become humanity's last hope on the red planet. Aliens are attacking your farm, and only you can stop them! KEY FEATURES: 25 days of survival - complete the full Mars campaign 5 tower types - from classic turrets to dark matter towers Robot management - assign robots to resource gathering Economic strategy - mine stone, iron, and biofuel 8 enemy types - from fast Zippets to powerful Gorvans Upgrade system - develop towers and technologies Persistent progress - upgrades carry over between missions GAMEPLAY: Build defensive towers, manage mining robots, and protect your dome from waves of alien invaders. Each day brings new challenges and opportunities for growth. STRATEGY: Plan tower placement for maximum efficiency Manage colony resources and economy Study enemies and adapt your tactics Develop technologies to strengthen your defense

About

Yard Defense

Features
Read full description

Yard Defense é um tower defense 3D épico de estratégia e sobrevivência! Defende o teu território contra hordas de inimigos persistentes. Desbloqueia os teus defensores, melhora as tuas capacidades e planeia cada movimento para manter o teu navio seguro. Características principais: Vários tipos de defensores com habilidades únicas. Ondas de inimigos cada vez mais desafiantes. Sistema de progressão e upgrades. Gráficos vibrantes e jogabilidade intuitiva. Estás pronto para o desafio? Instala agora e mostra que és o melhor mestre da estratégia!

Screenshots

Mars Defence4 screens
Yard Defense4 screens

Verdict

The call

The clearest difference is in-app purchases: Mars Defence at none against Yard Defense's 4. Mars Defence also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, 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

Both are free to download. Yard Defense sells 4 one-off in-app purchases. Mars Defence asks for nothing beyond the download.

UpkeepUpdate frequency

Mars Defence ships an update every 4 days, Yard Defense every 2 weeks. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 7 level
Mars Defence versus Yard Defense: the parameters behind the verdict, then further details
ParameterMars DefenceYard Defense
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.0 — better
Further details — not scored
Size227 MB404 MB
Age rating12+12+
DeveloperMaxim IvanovPARTYARD, UNIPESSOAL, LDA

In-app purchases

None

Mars Defence

No in-app purchases

4 purchases

Yard Defense

One-time4
  • 100 Yard Gems$0.99
  • 300 YardGems$1.99
  • Unlock 3X Speed$1.99
Show 1 more
  • Trait Luck Boost$1.99

Questions

Is Mars Defence free?
Mars Defence is free to download, with no in-app purchases.
Is Yard Defense free?
Yard Defense is free to download, with in-app purchases available.
Do Mars Defence or Yard Defense have ads?
Both Mars Defence and Yard Defense show ads.
Which is updated more often, Mars Defence or Yard Defense?
Mars Defence ships an update every 4 days, and Yard Defense every 2 weeks. Most recently, Mars Defence was updated on October 28, 2026 and Yard Defense on October 9, 2026.

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