Comparison

Castle Rivals vs FLOW.EXE

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

Head to head
About

Castle Rivals

Engage in fast-paced PvP battles by building defenses and firing cannons to destroy enemy castles. Utilize physics-based destruction and strategic hero abilities to outmaneuver opponents. Every shot counts in this skill-based combat game.

Highlights
  • Physics-based destruction
  • Skill-based cannon combat
  • Unique heroes with special abilities
  • Strategic gameplay
  • Upgradeable castles
  • Epic castle battles
Features
Read full description

Build your defenses, load the cannon, and destroy the enemy castle before they destroy yours! Castle Rivals is a fast-paced PvP destruction game where precision, strategy, and timing decide the battle. Command powerful heroes, fire devastating weapons, and watch enemy fortresses collapse with fully physics-based destruction. Every shot matters. Aim for structural weak points, bring down towers, and turn the enemy castle into rubble before your own defenses fall. FEATURES Epic Castle Battles Face off against enemy castles in intense PvP duels where only one fortress survives. Physics-Based Destruction Blast walls, collapse towers, and watch entire castles crumble realistically. Skill-Based Cannon Combat Aim carefully, adjust your shots, and exploit weak points to cause massive damage. Unique Heroes Unlock heroes with powerful weapons and special abilities. Each hero changes how you attack the enemy castle. Strategic Gameplay Choose the right hero and target the right structure to trigger devastating chain reactions. Upgradeable Castles Strengthen your defenses and make your fortress harder to destroy. Satisfying Destruction Every battle is different as structures collapse and battles unfold dynamically. Do you have the skill to bring down the enemy fortress before yours falls? Load the cannon. Take aim. Destroy the castle.

About

FLOW.EXE

Features
Read full description

FLOW.EXE is a mobile-first pipe puzzle with the soul of a developer terminal. Every level is a broken pipeline. Tap modules to rotate them and reconnect INPUT → OUTPUT before your moves run out. Switches open gates, tunnels teleport the flow, firewalls conduct only when their logic holds, buffers store charge, splitters fork the stream — and THE AGENT patrols the board, twisting your pipes behind your back. • 95 hand-tuned levels across five tiers — BASIC to LEGEND. • 21 mechanics, each taught the moment you meet it. • A fresh daily puzzle every day — build your streak. • Par-perfect star ratings, achievements and leaderboards. • Clean monospace design, light and dark themes, English and Russian. • No ads, no timers, no nonsense.

Screenshots

Castle Rivals4 screens
FLOW.EXE4 screens

Verdict

The call

The clearest difference is in-app purchases: FLOW.EXE at none against Castle Rivals's 10. FLOW.EXE also leads on ads (none vs shown). On price, update cadence, 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. Castle Rivals sells 10 one-off in-app purchases. FLOW.EXE asks for nothing beyond the download.

UpkeepUpdate frequency

Castle Rivals ships an update every 9 days, FLOW.EXE every 8 days. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Castle Rivals versus FLOW.EXE: the parameters behind the verdict, then further details
ParameterCastle RivalsFLOW.EXE
PriceFreeFree
Rating4.5 (2.2K ratings) — better—
Positive reviews39.8% of reviews—
Number of ratings2.2K — better—
Update frequencyEvery 9 daysEvery 8 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size512 MB31 MB
Age rating9+4+
DeveloperVoodooilia Nosovskii

In-app purchases

10 purchases

Castle Rivals

One-time10
  • Starter Pack$1.99
  • Hero Boost$3.99
  • Small Gem Package$4.99
Show 7 more
  • Champion Pack$4.99
  • Medium Gem Package$9.99
  • Arena Pack$9.99
  • Moon Maiden Offer$9.99
  • Battle Pass$9.99
  • Forge Pass$14.99
  • Large Gem Package$19.99
None

FLOW.EXE

No in-app purchases

Questions

Is Castle Rivals free?
Castle Rivals is free to download, with in-app purchases available.
Is FLOW.EXE free?
FLOW.EXE is free to download, with no in-app purchases.
Do Castle Rivals or FLOW.EXE have ads?
Castle Rivals shows ads; FLOW.EXE does not.
Which is updated more often, Castle Rivals or FLOW.EXE?
Castle Rivals ships an update every 9 days, and FLOW.EXE every 8 days. Most recently, Castle Rivals was updated on November 5, 2026 and FLOW.EXE on October 28, 2026.

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