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Updated July 2026 · real, multi-region App Store reviews
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The verdict on

Legend of Slime

45
User verdict / 100 High confidence Divided

Legend of Slime is an addictive idle game praised for its engaging gameplay and progression, but recent updates have introduced an overwhelming number of forced ads and significant bugs, severely impacting the user experience and leading to widespread frustration.

4.7★ lifetime (41,510) Free + in-app purchases since 2022 by LoadComplete Co., Ltd updated 0.7 mo ago recent negative 52% 50 reviews across 1 regions
Forced Ads Gameplay & Addiction Bugs & Progress Loss User Experience (UX)
5★16
4★5
3★3
2★7
1★19
recent reviews across 1 regions, vs the 4.7★ lifetime average

Legend of Slime is a popular idle game known for its addictive progression and enjoyable mechanics, allowing players to upgrade their slime and collect companions. However, recent updates have drastically increased the frequency of forced ad pop-ups, interrupting gameplay and frustrating long-time users, alongside reports of game-breaking bugs and lost progress.

What users like

  • Engaging and addictive gameplay with satisfying progressionR2R6R19R38
  • Offers a 'sleep mode' for passive in-game currency generationR13
  • Cauldron addition allows free-to-play players to obtain SS slimesR4
  • Good for casual, background play when not interrupted by adsR18R25

What users complain about

  • Excessive and frequent forced ad pop-ups interrupt gameplayR1R2R3R8
  • Tutorial is too long, includes ads, and involves excessive handholdingR5R15R22
  • Reports of game-breaking bugs, including soft locks and progress lossR34R35R42R44
  • In-app purchases for slimes and ad-free options are considered expensiveR20R25
  • Game can be slow or freeze, impacting performanceR23

Latest update · v4.13.0

What the developer says changed (the verdict above weighs this against what reviewers report):

■ New Content ・New Season Pass: Medusa Slime ・New SSS Slimes: Zeus, Hades ■ Content Update ・Increased Relic max level ■ Content Improvements ・Arena improvements ■ Other Improvements and Fixes ・New user experience improvements ・Other stability improvements and bug fixes

Recurring themes

Forced Ads negative
Many long-time players are frustrated by the recent introduction of frequent, unskippable, and random ad pop-ups that interrupt core gameplay activities like summoning and battles. This change contradicts the game's previous optional ad model and is seen as a greedy move, forcing users to consider expensive ad-free purchases. The developer's notes mention 'stability improvements and bug fixes' but do not address the ad frequency, which users report has worsened.R1R2R3R8
Bugs & Progress Loss negative
Several users report critical bugs, including being soft-locked in tutorials, frequent game crashes, and, most severely, losing years of saved progress after updates or due to errors. This issue is particularly frustrating for players who have invested significant time in the game. The developer's notes mention 'stability improvements and bug fixes' and 'new user experience improvements', but recent reviews indicate these issues persist or have emerged.R34R35R42R44
Gameplay & Addiction positive
Despite the issues, many reviewers still find the core gameplay loop of Legend of Slime highly addictive and enjoyable, praising its progression system, upgrade mechanics, and idle features like 'sleep mode' for earning currency.R2R6R7R10
User Experience (UX) negative
Beyond ads, the user experience is criticized for an overly long and intrusive tutorial that constantly interrupts gameplay, even for new users. There are also complaints about constant network loading and general slowness. The developer's notes mention 'new user experience improvements', but recent reviews suggest these issues are still present.R5R15R22R23

Who it's for

This game is for players who enjoy idle RPGs with deep progression systems and don't mind frequent interruptions for ads, or are willing to pay for an ad-free experience R13R19. It's also suitable for those looking for a game to play casually in the background, provided the ad issue is resolved R18R25. It is NOT for users who are easily frustrated by constant ad pop-ups, lengthy tutorials, or the risk of losing game progress R1R5R22.

Evidence note: The recent reviews heavily focus on the negative impact of forced ads and critical bugs, which is a strong consensus. While there are positive reviews, they often preface their praise with a complaint about ads or are from newer players who may not have experienced the game before the ad changes. The high lifetime rating of 4.66 suggests a positive history, but the recent negative sentiment (0.52 recent-negative) indicates a significant decline in satisfaction, primarily due to the ad implementation and bugs.

Frequently asked

Does Legend of Slime have forced ads?
Yes, recent updates have introduced frequent, random ad pop-ups that interrupt gameplay, even during activities like summoning or battles R1R2R3R11.
Can you play Legend of Slime without spending money?
Yes, you can play for free, and a recent 'cauldron' addition helps free-to-play players obtain SS slimes R4R14. However, the game now heavily pushes forced ads, and the ad-free option or premium slimes are considered expensive by some users R20R25.
Are there bugs or issues with saved progress in Legend of Slime?
Yes, some users have reported critical bugs, including being soft-locked, frequent crashes, and losing years of saved game progress after updates or due to errors R34R35R42R44.

What reviewers actually said

Built only from these 50 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R2] 2/5 · GB ads ruin this game: Great game. it gets super addictive at some times and it’s very enjoyable but the amount of ads that pop up in a short amount of time is absurd. i beg u to shorten or remove the amount of ads
  2. [R6] 5/5 · GB My best game.: Its so good im obsessed with it so now i thank you for making this game. I’ve couldn’t done it without you.❤️❤️❤️❤️❤️❤️❤️❤️❤️
  3. [R19] 5/5 · GB Very addicting: Very good game when your bored it’s soo entertaining makes you not wanna get off for hours really recommend it
  4. [R38] 5/5 · GB Wow!: I have been playing this game for a while and it is so fun! I have been easily learning how this works and it’s just so good!! So fun!!
  5. [R13] 5/5 · GB The game: This game is so fun u can even get a sleep mode to make free money in the game its a game were u uprade your slime and get it really strong and you can get pets slimes power and shield/swords its fun play now.
  6. [R4] 4/5 · GB I like this game but it has some flaws…: I’m not rating it five stars because of the ad popups… also LoadComplete, if you see this, please, I beg on my hands and knees, can you PLEASE get rid of the random ad popups?! I don’t wanna sound aggressive but OH MY GOD! I swear those ads are so annoying! 🥲 But the cauldron addition is a good one because that means that people who don’t want to spend any
  7. [R18] 1/5 · GB Fallen off: Genuinely good game because it didn’t have any ads. I’ve played this game for hours usually when I’m doing something else and it was fun because I didn’t have to give it 100% attention. Recently they’ve added forced ads and it’s ruined the game. Went from a nice background game to run to a typical phone game. Genuinely so disappointed by it
  8. [R25] 1/5 · GB why the forced ads?: I’ve been playing this game on and off for a few years now usually when i’m watching tv or on transport etc as an easy background game, but now there are forced ads every 30 seconds?? the reason this game was great was because it was optional to watch the ads unlike other annoying games that i delete after a day. if you want to make more money maybe make the packs and in-app p
  9. [R1] 4/5 · GB 4STAR WOULD BE 5: IT WOULD BE 5IF THERE WAS NO AD BREAKS NO ONE CARES ABOUT ADS I HAVE TO KEEP CLOSING THE GAME WHY ADS JUST REMOVE THE ADS NO AD BREAKS PLEASEE
  10. [R3] 4/5 · GB The random ad pop ups: The thing is that the game is amazing but the only thing that annoys me the most in this game is the random ad pop ups because I’m just summoning swords or armour and then a ad pops up so please delete that feature but overall it is a great game
  11. [R8] 1/5 · GB Ads: I quit. First you beg for money now the forced ads!
  12. [R5] 1/5 · GB Too much handholding: The game practically plays itself and the tutorial seems to never end. You don't get like 3 seconds to actually play the game in the first 10 minutes. You completed a floor? Interrupted. You levelled up? Interrupted. Not to mention the constant network loading every 3 seconds in between. Abysmal UX, which is a shame because the game is really cool otherwise.
  13. [R15] 1/5 · GB Tried to return to game: Tried to get back into the game. Met with a ludicrous amount of needless button pressing tutorial, that actually had the stones to include ads in the middle. Ridiculous
  14. [R22] 1/5 · GB Forced ads unbearable tutorial: Tutorial is so unbearable it makes me sick. Forced ads are also another reason this app is the worse game I’ve ever downloaded, I lasted a total of about 12 minutes .
  15. [R34] 1/5 · GB Great game… when it doesn’t crash: Recently the game has started to crash quite a bit, no other games I have do. iPhone 16 Pro model. The devs need to look into this ASAP.
  16. [R35] 2/5 · GB Mad: Deleted all my progress now I’ve gotta start from 0 and I got so far in the game and had limited time slimes too
  17. [R42] 1/5 · GB GA-GA-GARBAGE: Hit with an error when opening the game that bugged my game and so I lost years of progress. Good game, until it wasn't.
  18. [R44] 3/5 · GB Was enjoying but I’m soft locked with a bug: I was doing really well and getting quite far with lv 5000 stats but after reaching the point of the arena tutorial it forces me into ye screen and I cannot click anything and I can’t find a solution and I miss playing this game
  19. [R20] 1/5 · GB What a sad turn of events: I’ve been playing this game for years, ever since it was launched. The recent addition of multiple adverts every 2 minutes is beyond irritating. I understand that games like this revolve around money, but this update is a joke. You’re basically forcing people to pay to go ad-free (£10 for a year or £30 forever) just to enjoy the game like it used to be. This wouldn’t be
  20. [R23] 2/5 · GB So slow: Terrible game with adds everywhere and it’s so slow. I can’t even do stuff without the game freezing and i have to wait to for it unfreeze. Would be a good game without forced adds and if it wasn’t terribly slow.
  21. [R7] 5/5 · GB Awesome: Such an awesome game always resort to it
  22. [R10] 5/5 · GB 🧅🧅: 🧅 it good game
  23. [R11] 3/5 · GB Too many Adds: I’ve played the game for a couple of months now, and I’ve noticed the adds seem to pop-pop up a lot quicker than they used to. The constant add breaks make the game less enjoyable and playable as you’re basically just watching adds half the time. Please slow down the adds to maybe, once ever ten minutes?
  24. [R14] 2/5 · GB Turned for the worse: I used to love this game and by the way, I’m a free to play player that does not spend a single penny on this game.I absolutely hate these popup ads and I would really appreciate it if it could be a optional thing if you want to watch the ad and then maybe I’ll give it 5 stars. Peace.

Synthesized from 50 recent App Store reviews · updated July 2026 · View on the App Store