Comparison

SphereKnight vs Rogue Invaders

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

Head to head
About

SphereKnight

Control a ball-shaped knight by flicking your finger to defeat enemies and stop an invasion of chaos. Upgrade weapons, forge new armor, and master unique sword auras to progress through 33 stages and 8 boss battles. An endless mode offers continuous challenges.

Highlights
  • Flick controls for ball-shaped knight
  • Dash attack for enemy defeat
  • Master sword auras
  • Upgrade weapons and forge armor
  • 33 stages with boss battles
  • Endless stage run feature
Features
Read full description

In the heat of the battle his body turns into a ball. Control SphereKnight with the flick of your finger for some fresh, exciting and tense rolling action! CAUTION! This is an auto-save game. Do not close the application during saving! Doing so may corrupt the save file. STORY In the heat of the battle his body turns into a ball. The one that possesses these mysterious powers is known as the Cosmos Apostle, and it is he who must stop the incoming invasion of chaos. The ruined kingdom of Lebralia Those who dare enter this forbidden land are haunted by a ‘cursed mask’. SphereKnight now steps foot on this land ready to take on his mission as the Cosmos Apostle. GAME FEATURES •Experience a new type of action game in which you swipe the screen to control the ball shaped knight. •Feel the thrill of excitement when you defeat many enemies with just one rolling dash attack! •Feel the satisfaction of mastering the use of the Auras created when SphereKnight uses his dash attacks! STRENGTHEN WEAPONRY •Items you pick up along your adventure can be upgraded in the magic shop. •Collect enough materials on your adventure to be able to forge new armour and magical swords. •Magical swords are an intrinsic part of this game. Each one has their own aura type created when you dash attack so making use of them well will help greatly expand your play strategy. EXTENSIVE STAGES •A total of 33 stages and eight fearsome boss battles await you. •An additional endless stage run feature is also included. •The cursed mask that hauntingly follows SphereKnight calls forth evil creatures to attack. Depending on SphereKnight’s actions, newer and even stronger enemies will appear.

About

Rogue Invaders

Features
Read full description

Unleash cosmic carnage in Rogue Invasion, a pulse-pounding 3D shooter that riffs on Space Invaders with a killer roguelite twist! Mow down relentless alien swarms, dodge devious drones, and slug it out with massive bosses in a white-knuckle battle to save the galaxy. Customize your fleet with unlockable ships and stack permanent upgrades to turn the tide. Crush achievements for juicy stat boosts, dominate the leaderboards, and fight your way to the alien homeworld in a brutal, skill-testing showdown. Ready to own the stars?

Screenshots

SphereKnight4 screens
Rogue Invaders4 screens

Verdict

The call

The clearest difference is in-app purchases: Rogue Invaders at none against SphereKnight's 1. Rogue Invaders also leads on ads (none vs shown) and update cadence (fortnightly vs every 4 months). SphereKnight's advantage is iOS requirement (8.0 vs 17.0). 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. SphereKnight sells 1 one-off in-app purchase. Rogue Invaders asks for nothing beyond the download.

UpkeepUpdate frequency

SphereKnight ships an update every 4 months, Rogue Invaders fortnightly. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
SphereKnight versus Rogue Invaders: the parameters behind the verdict, then further details
ParameterSphereKnightRogue Invaders
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 4 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better17.0
Further details — not scored
Size164 MB338 MB
Age rating12+4+
Developerhiroaki saitoMachine Thoughts LLC

In-app purchases

1 purchases

SphereKnight

One-time1
  • Sphere Knight:ad removal$1.99
None

Rogue Invaders

No in-app purchases

Questions

Is SphereKnight free?
SphereKnight is free to download, with in-app purchases available.
Is Rogue Invaders free?
Rogue Invaders is free to download, with no in-app purchases.
Do SphereKnight or Rogue Invaders have ads?
SphereKnight shows ads; Rogue Invaders does not.
Which is updated more often, SphereKnight or Rogue Invaders?
SphereKnight ships an update every 4 months, and Rogue Invaders fortnightly. Most recently, SphereKnight was updated on September 26, 2026 and Rogue Invaders on October 13, 2026.

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