Random Card Defense vs Robot Mayhem
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Random Card Defense
Engage in real-time PvP battles in a strategic tower defense game. Merge dice to create powerful towers with random abilities and fend off waves of monsters. Build your ultimate deck and climb the leaderboards.
- Real-time PvP battles
- Dice merging for tower upgrades
- Random tower type changes
- Build and upgrade dice collection
- Construct ultimate Battle Deck
- Progress through multiple Arenas
- Form a Clan for community
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Enter the Battle Arena! Dice Defense is an amazing tower defense game where you set up dice towers with various abilities and defend incoming monsters. When you merge the same type of dice with the same eye, you will get 1 level higher dice tower. But remember! The tower type changes randomly when you merge them! It will get more and more difficult for your opponent as you fend off incoming enemies longer and longer. Apply various strategies based on your opponent's deck. Mix and match various dice and create your best and powerful PvP deck. FEATURES ● Duel players from around the world in real-time and take their Trophies ● Earn chests to unlock rewards, collect powerful new dice and upgrade existing ones ● Build and upgrade your dice collection ● Construct your ultimate Battle Deck to defeat your opponents ● Progress through multiple Arenas all the way to the top ● Form a Clan to share dice and build your very own battle community ● Learn different battle tactics
Robot Mayhem
Engage in intense battles against waves of sentient robots threatening humanity. Utilize a variety of weapons, upgrade your skills through a roguelike talent tree, and conquer diverse maps to survive overwhelming odds.
- One-handed control
- Salvageable and multiple weapon choices
- Varied robot types and maps
- Roguelike talent tree for skill progression
- Intense wave-based combat
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Robots got consciousness and they will ruin every humanity on earth! Only you can save humanity against dangerous robots. As a soldier you can get exclusive weapons and stand against most fearsome robots. Robots get more clever and stronger by each wave. Don't worry, you have unlimited potential of growth! Beware sometimes they may outnumber you and drive you into a corner, you can find a way to survive! Features: - Simple one handed control - Multiply weapons to choose, if you don't like the weapon you can always salvage and choose different ones - Different types of robots that can outnumber you. Each map have different types of robots. - Multiply maps to fight against Robots to save humanity. - Roguelike talent tree to choose your special skills to assist your growth. Terms of Service (EULA): https://www.udogames.com/legal/privacy-policy/
Screenshots
Verdict
The clearest difference is rating: Random Card Defense at 4.7 against Robot Mayhem's 4.0. Random Card Defense also leads on ratings volume (202 vs 20) and update cadence (weekly vs fortnightly). On price, ads, in-app purchases and monetization model 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
Both are free to download. Random Card Defense sells 10 one-off in-app purchases and Robot Mayhem sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Random Card Defense holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Random Card Defense has 202 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 55% of Random Card Defense's written reviews are positive against 46% of Robot Mayhem's.
Random Card Defense ships an update weekly, Robot Mayhem fortnightly. Both last shipped on November 3, 2026.
| Parameter | Random Card Defense | Robot Mayhem |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (202 ratings) — better | 4.0 (20 ratings) |
| Positive reviews | 54.7% of reviews — better | 46.2% of reviews |
| Number of ratings | 202 — better | 20 |
| Update frequency | Weekly — better | Fortnightly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 14.5 |
| Further details — not scored | ||
| Size | 177 MB | 315 MB |
| Age rating | 4+ | 12+ |
| Developer | NSTAGE Inc. | WORLDNMORE TEKNOLOJI ANONIM SIRKETI |
Customer experience
Random Card Defense
Robot Mayhem
Bugs and requests
Random Card Defense
Reported bugs
12 issues- Cards stop attacking or deal zero damage
- Invincible monsters that cannot be killed
- Game freezes after battles and trophy rewards
- Network errors causing disconnections mid-match
- Critical damage stat decreases when upgrading cards
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- Monsters spawn with zero HP but remain alive
- Seasonal pass progress resets on connection errors
- Purchased items not delivered despite payment
- Game crashes frequently on iOS devices
- Ads not providing promised bonus rewards
- Event rewards not being delivered
- Bots using overpowered deck combinations
Requested features
10 requests- More diverse card and hero options
- Additional bosses and arena variations
- Friends list for easier cooperative matching
- Faster update and release schedule
- Ability to delete cards in party mode
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- Graphics settings to reduce particle effects
- Multiple meta options through better card balancing
- In-game chat for player communication
- Random arenas like in Random Dice
- Improved bot deck variety
Robot Mayhem
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Random Card Defense
- Legend Pack$1.99
- Party Pack$2.99
- Attendance Growth Package$3.99
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- Legend Pack 2$4.99
- Growth Diamond Pack$4.99
- Original Legend Card Pack$5.99
- Starter Pack$6.99
- Jumper's Pack$12.99
- VIP PASS$19.99
- Brighter Pack$19.99
Robot Mayhem
- Diamonds (x100)$1.99
- Bundle 1$1.99
- Ad Pass Offer$2.99
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- Bundle 2$3.99
- XP Collector Drone$3.99
- Diamonds (x550)$4.99
- Bundle 4$4.99
- Bundle 3$4.99
- Diamonds (x1200)$9.99
- Diamonds (x2500)$19.99
Questions
Is Random Card Defense free?
Is Robot Mayhem free?
Which has better reviews, Random Card Defense or Robot Mayhem?
Do Random Card Defense or Robot Mayhem have ads?
Which is updated more often, Random Card Defense or Robot Mayhem?
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