Slime Legion vs ECHO PANIC
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Slime Legion
Defend your monster forest from invading heroes by merging and evolving your creatures. Strategically build your lineup and protect your castle in this addictive roguelike tower defense game.
- Merge and evolve monsters
- Roguelike skill selection
- Tower defense gameplay
- Strategic lineup building
- Castle protection
- Casual strategy
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The peaceful monster forest has been invaded by brutal heroes! Become a heroic big devil！ Guard the peace of the forest! Merge your monsters! Set up your favorite lineup! Protect your castle! Destroy all invaders! ~~Addictive merge game~~ ~~Powerful tower defense game~~ ~~ Roguelike skill selection~~ ~~Super addictive casual game~~ ~~Simple and interesting strategy gameplay~~ Strengthen your monsters and evolve into invincible soldiers!
ECHO PANIC
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Your past self becomes your next enemy. ECHO PANIC is a portrait score attack where you drag to collect coins while dodging the paths you left behind. Every 10 seconds, your latest route becomes an ECHO that repeats the same movement. Touch an ECHO and the run is over. Move boldly and you may block your future escape. Score with survival time, coins, and completed loops, then beat your past self. FEATURES • One-finger drag controls • A new ECHO every 10 seconds • Quick retries • Best score and settings stored on device • Sound, vibration, screen shake and flash settings • Play offline • Choose from 15 languages on the title screen • No in-app purchases SCORING • Survival: 10 points per second • Coins: 100 points each • Completing a 10-second loop: 250 points ADS & PRIVACY Ads appear after game over only, at most once every 3 games and at least 60 seconds apart. If an ad is not ready, it is skipped. Ads never interrupt gameplay. Privacy options are available on the title screen.
Screenshots
Verdict
The clearest difference is in-app purchases: ECHO PANIC at none against Slime Legion's 10. ECHO PANIC also leads on update cadence (every 2 days vs monthly). Slime Legion's advantage is chart position (#90 vs unranked). 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
Both are free to download. Slime Legion sells 10 one-off in-app purchases. ECHO PANIC asks for nothing beyond the download.
Slime Legion ships an update monthly, ECHO PANIC every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Slime Legion | ECHO PANIC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5K ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 5K — better | — |
| Update frequency | Monthly | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #90 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 954 MB | 127 MB |
| Age rating | 17+ | 4+ |
| Developer | Perfeggs | RYO MOCHIZUKI |
Bugs and requests
Slime Legion
Reported bugs
4 issues- Frequent crashes and app freezes
- Inconsistent or missing translations
- Saved progress being lost or reset
- Inability to collect rewards or complete events
Requested features
4 requests- Offline progression mode
- Improved tutorial and onboarding
- Multiplayer or social features
- More balanced difficulty curve
ECHO PANIC
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Slime Legion
- NEVERGIVEUPGIFT_V1$0.99
- SAMLLPACK_V2$4.99
- Periodic Purchase$4.99
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- GROWTH_SMALL_FUND$6.99
- SUPPLYPACK_V2$6.99
- SUPPLYPACK_V3$9.99
- Pass Activity$9.99
- BATTLEPASS$11.99
- ADVANCEBATTLEPASS$14.99
- EXPERTGIFTPACK_V2_1$19.99
ECHO PANIC
No in-app purchases
Questions
Is Slime Legion free?
Is ECHO PANIC free?
Do Slime Legion or ECHO PANIC have ads?
Which is updated more often, Slime Legion or ECHO PANIC?
Other comparisons
