Comparison

Castle Conqueror vs Backpack Alpaca

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

Head to head
About

Castle Conqueror

Strategically deploy cannons to attack rival castles and outmaneuver enemy forces. Adjust your army size with precision to gain the upper hand in this intense war simulation.

Highlights
  • Castle attack gameplay
  • Strategic cannon deployment
  • Army size manipulation
  • Outnumbering enemy forces
  • Relentless war simulation
Features
Read full description

You set up your headquarters to attack a strong castle. You launched a relentless attack on the rival castle with your army and they came out of their strongholds to counterattack. In this relentless war, most of the time your opponent's soldiers can outnumber yours. However, you have a weapon in your hands that can change the fate of the war... You can reduce or increase the number of armies with the cannons in your hand. You have to be very careful here; You must be careful with your shots so that you do not reduce the number of your own soldiers and increase the number of opponent soldiers. We wish you pleasant and happy games.

About

Backpack Alpaca

Features
Read full description

"Turns out, organizing your backpack really CAN save the world!" Llama Legion: Backpack Frontier – The Revolutionary Strategy TD fusing Roguelike + Inventory Management! When gentle llamas turn into elite warriors, your BACKPACK becomes the ultimate weapon to turn the tide! Game World In a magical farm world invaded by the Turkey Troop, once-docile llamas awaken as guardians! As the "Llama Commander," recruit unique llamas across procedurally generated maps. Face random events and strategic choices to build your one-of-a-kind defense and fight for your homeland! Llama Legion System • Collect 20+ llamas with distinct traits & skills Inventory Space Puzzle (Core Mechanic) • Tetris-style item placement for tactical advantages Dynamic Tower Defense Combat • Strategic deployment & real-time battles Audio-Visual Experience Art Style: Vibrant cartoon rendering + exaggerated physics Immersive Sound: Comical bugle calls of charging turkeys → High-tech item fusion SFX → Epic boss battle soundtracks Achievements: Unlock 50+ badges like "Space Magician" (Perfect Placement x10) and "Turkey Terminator" (Flawless Victory)!

Screenshots

Castle Conqueror4 screens
Backpack Alpaca4 screens

Verdict

The call

The clearest difference is in-app purchases: Castle Conqueror at none against Backpack Alpaca's 10. Backpack Alpaca's advantage is update cadence (every 3 months vs every 28 months). 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. Backpack Alpaca sells 10 one-off in-app purchases. Castle Conqueror asks for nothing beyond the download.

UpkeepUpdate frequency

Castle Conqueror ships an update every 28 months, Backpack Alpaca every 3 months. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 7 level
Castle Conqueror versus Backpack Alpaca: the parameters behind the verdict, then further details
ParameterCastle ConquerorBackpack Alpaca
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 28 monthsEvery 3 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size80 MB146 MB
Age rating4+4+
Developeromer cetinGuangzhou Duoyi Trading Co., Ltd

In-app purchases

None

Castle Conqueror

No in-app purchases

10 purchases

Backpack Alpaca

One-time10
  • Movie Tickets × 5$0.29
  • Founder's Bounty$0.99
  • Advertising Voucher Package$0.99
Show 7 more
  • Limited-Time Legendary Package$0.99
  • Wish Package$0.99
  • Movie Tickets × 10$0.99
  • Movie Tickets × 25$1.99
  • Skin Package$4.79
  • Golden Monthly Card$4.79
  • Premium Monthly Card$9.79

Questions

Is Castle Conqueror free?
Castle Conqueror is free to download, with no in-app purchases.
Is Backpack Alpaca free?
Backpack Alpaca is free to download, with in-app purchases available.
Do Castle Conqueror or Backpack Alpaca have ads?
Both Castle Conqueror and Backpack Alpaca show ads.
Which is updated more often, Castle Conqueror or Backpack Alpaca?
Castle Conqueror ships an update every 28 months, and Backpack Alpaca every 3 months. Most recently, Castle Conqueror was updated on October 5, 2026 and Backpack Alpaca on October 11, 2026.

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