Comparison

Quantum X Planet Defense vs Soul Quest

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

Head to head
About

Quantum X Planet Defense

Engage in real-time strategy by colonizing planets and building creatures. Your objective is to eliminate all enemy forces and conquer their territories. This game offers a unique approach to the tower defense genre.

Highlights
  • Real-time strategy gameplay
  • Planet colonization
  • Creature building and management
  • Eliminate enemy creatures
  • Conquer enemy planets
  • Inherit planet properties
Features
Read full description

The other Tower Defense Game Quantum is a realtime strategy in the spirit of Galcon and Eufloria. You are in control of creatures that orbit planets. You can colonize new planets by moving creatures to them. To create new Creatures you have to build trees on the planets. The new born creatures will then inherit certain properties from their home planet. The goal of the game is it to eliminate all enemy creatures and overtake all their planets. • It is built on the Quantum (GPL). Its repo is at https://github.com/badlogic/quantum

About

Soul Quest

Become a powerful wizard and command an army of mini warriors across historical epochs. Collect souls from defeated enemies to summon champions and conquer zombie waves and monstrous hordes. Master the art of war and survival in epic, strategic battles.

Highlights
  • Collect souls and resurrect warriors
  • Master the art of war
  • Engage in epic battles across eras
  • Heroes vs hordes tactical combat
  • Wizardry and magic abilities
  • Strategic conquest and survival
Features
Read full description

Embark on an epic journey as a powerful wizard through the age of war and magic survival in Soul Quest: Epic War RPG. From ancient to modern times, you will command an army of mini warriors, masters in the art of war across historical epochs. Your quest in Soul Quest: Epic War RPG begins with collecting souls from defeated enemies, empowering you to summon your own mini warriors. These summoned champions are your key to conquering relentless zombie waves and monstrous hordes that threaten to engulf each era of history! Key Features: - Collect souls & resurrect warriors: Gather souls from fallen foes to strengthen your soul knight army and unlock powerful summoning abilities. - Master the Art of War: Strategize and deploy your mini warriors strategically to defeat zombie waves and monstrous hordes. It's heroes vs hordes - using your army strategically will ensure your survival through the eras. - Engage in epic battles: Engage in age of war from ancient civilizations to futuristic realms, all in the quest to conquer and survive io. - Heroes vs Hordes: Lead your summoned warriors against hordes of zombies and monstrous creatures in intense, tactical battles. You can resurrect fallen warriors and distribute souls evenly among the units you've unlocked, ensuring a balanced and formidable army at all times. - Wizardry and Magic survival: You're a wizard with powerful abilities - harness the mystical forces of wizardry to augment your army’s abilities and turn the tide of battle. Win magical artifacts to increase your chances of survival and show your full wizard powers! - Strategic Conquest: Plan your moves carefully as you navigate through the challenges of each age of war, mastering the art of war and survival io against overwhelming odds. Join the Soul Quest in this Epic War RPG, harness the power of souls and summon your army of mini warriors in this survival game. As a wizard and soul knight collecting the dark souls of your defeated enemies, it's your mission to conquer this heroes vs hordes battle of the ages. Master the art of war, defeat the zombie waves, and ensure your survival. If you enjoy strategy, historical battles and zombie games, then Soul Quest: Epic War RPG is the war game for you. We are warriors fighting for survival through the eras, and you're the wizard in charge of leading us to victory. Are you up to the challenge?

Screenshots

Quantum X Planet Defense3 screens
Soul Quest4 screens

Verdict

The call

The clearest difference is rating: Soul Quest at 4.3 against Quantum X Planet Defense's 3.0. Soul Quest also leads on update cadence (weekly vs every 2 months) and ratings volume (1.4K vs 10). Quantum X Planet Defense's advantage is in-app purchases (none vs 22) and ads (none vs shown). On price and device support 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. Soul Quest sells 22 one-off in-app purchases. Quantum X Planet Defense asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Soul Quest holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Soul Quest has 1.4K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 36% of Quantum X Planet Defense's written reviews are positive against 6% of Soul Quest's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Quantum X Planet Defense ships an update every 2 months, Soul Quest weekly. Both last shipped on October 24, 2026.

Scorecard8 real differences · 2 level
Quantum X Planet Defense versus Soul Quest: the parameters behind the verdict, then further details
ParameterQuantum X Planet DefenseSoul Quest
PriceFreeFree
Rating3.0 (10 ratings)4.3 (1.4K ratings) — better
Positive reviews36.0% of reviews — better5.6% of reviews
Number of ratings101.4K — better
Update frequencyEvery 2 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size97 MB194 MB
Age rating4+9+
DeveloperVuong TaiHOMA GAMES

Customer experience

Quantum X Planet Defense

All ratings10 ratings
Positive50.0%
Neutral10.0%
Negative40.0%
Written reviews25 reviews
Positive36.0%
Neutral12.0%
Negative52.0%

Soul Quest

All ratings1,359 ratings
Positive81.0%
Neutral5.2%
Negative13.8%
Written reviews108 reviews
Positive5.6%
Neutral13.9%
Negative80.6%

Bugs and requests

Quantum X Planet Defense

Not enough reviews yet to summarise bugs or requests.

Soul Quest

Reported bugs

4 issues
  • Unable to progress past certain levels
  • Quests and missions not tracking properly
  • Freezing and crashing issues
  • Paid options not working as advertised

Requested features

3 requests
  • Fix progression and level bugs
  • Improve in-app purchase experience
  • Provide true ad-free option

In-app purchases

None

Quantum X Planet Defense

No in-app purchases

22 purchases

Soul Quest

One-time22
  • Some Gems$0.99
  • World Pack 01$1.99
  • Break Level 1 Piggy !$1.99
Show 19 more
  • No Ads 24 Hours$1.99
  • World Pack 02$2.99
  • World Pack 03$2.99
  • Break Level 2 Piggy !$2.99
  • World Pack 04$3.99
  • Break Level 3 Piggy !$4.99
  • Pile of Gems !$4.99
  • No Ads Forever !$5.99
  • Starter Pack !$6.99
  • Artifact Souls Magnet$7.99
  • Premium Pack$9.99
  • Heap of Gems !$9.99
  • 1 Purchase = 7 Rewards !$11.99
  • Artifacts Pack$19.99
  • No Ads VIP Pass$19.99
  • Bag of Gems !$19.99
  • Mega Premium Pack$24.99
  • Bucket of Gems !!!$49.99
  • Chest of Gems !!!$99.99

Questions

Is Quantum X Planet Defense free?
Quantum X Planet Defense is free to download, with no in-app purchases.
Is Soul Quest free?
Soul Quest is free to download, with in-app purchases available.
Which has better reviews, Quantum X Planet Defense or Soul Quest?
Soul Quest is rated higher. Quantum X Planet Defense averages 3.0 out of 5 from 10 ratings, while Soul Quest averages 4.3 from 1.4K ratings.
Do Quantum X Planet Defense or Soul Quest have ads?
Soul Quest shows ads; Quantum X Planet Defense does not.
Which is updated more often, Quantum X Planet Defense or Soul Quest?
Quantum X Planet Defense ships an update every 2 months, and Soul Quest weekly. Most recently, Quantum X Planet Defense was updated on October 24, 2026 and Soul Quest on October 24, 2026.

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