Idle Demon Summoner
Chrio Games · 2026 · Casual, Idler, Creature Collector, Auto Battler, 2D
PC
Mixed67% · 15
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About Idle Demon Summoner
A bullet heaven idle game where your demons fight for you — and grow stronger every run.
Conquer alien worlds with your summoned demons
Face endless waves of enemies across alien worlds and unleash the power of your demons. In this bullet heaven idle game, your team fights fully automatically while you gather valuable resources to grow ever stronger.Collect tons of loot, unlock powerful upgrades, and expand your roster of demons.Build your perfect demon team
Assemble your team strategically — positioning and abilities matter. Discover powerful synergies and optimize your formation to overcome even the most dangerous foes.Unlock new demons with Soul Stones
Use Soul Stones to unlock new demons or strengthen your team. With a bit of luck, you may even recruit shimmering demons that grant unique power and flair.What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
this is a fun idle game that can play itself if you want it to. It took about 55 hours to work through all the content. The mixing and matching of demons for optimal coverage is quite challenging and the best part of this weirdly soothing game. I hope the dev makes it so you can select a particular monster during battle to only see its damage. In late game is it pretty chaotic with all on or all off. Highly recommended and quite inexpensive!4 found this helpful
Idle Demon Summoner turned out to be way more addictive than I expected. The summoning loop is smooth, the upgrades feel meaningful, and the power scaling is super satisfying to watch. It nails that perfect idle rhythm where you always feel like you’re progressing, even during short sessions. The art and atmosphere add charm, and the pacing kept me engaged the whole time. A genuinely fun and rewarding idle experience.2 found this helpful
Great Game! The grind feels rewarding and the game itself feels unique Everything you expect from a good idle1 found this helpful
Funny that I'd finish at 666 hours... The game doesn't provide that much content, the very last achievement is just pure rng. That aside, it's okay, a nice snack for idle fans without any clicker elements to it.
I love idle and clicker games but this one is insanely griindy, i have spent 132 hours running to 100% and it is not satisfying at all, as well as the game completly deleting itself and ♥♥♥♥♥♥♥♥ itself after a power outage for no reason. The characters are very limited and tbh feel insanely underwhelming for the amount of grind you have to do to get them and to progress is at a literal snails pace.
The game is easy to complete in 50 hours, although getting 100% achievements is not. It's a 1/1000 chance to get a shiny demon. But endgame you can only farm like 30 legendary souls an hour. In order to get ALL Legendary shinies, it's taken an insane amount of time. I'm at 170 hours right now and still don't have one. All I'm doing is pressing the repeat button (cuz it's NOT IDLE!!!! You have to manually start your run every time) to not get any shinies... :/ (so after 120 hours of completing the game, still no shiny, not even mythic .... :/ ) Hence the negative review. EDIT: I just logged in to try the devs comment with the refresh => I lost my cloud save and could start from scratch LOL, guess I'm not changing my review.
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