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Idle Demon Summoner

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About Idle Demon Summoner

Idle Demon Summoner is a bullet heaven idle game where your demons fight automatically and grow stronger with each run. You face endless enemy waves across alien worlds while collecting resources and loot to improve your team.

Build your demon team

Collect demons, unlock upgrades and expand your roster. Positioning and abilities matter, so you can develop synergies and adjust your formation to take on more dangerous enemies.

Unlock and strengthen demons

Use Soul Stones to unlock demons or strengthen your team. With some luck, you may recruit shimmering demons, which grant unique power and flair.

Frequently asked questions

Buy Idle Demon Summoner 82% cheaper than on Steam.

Idle Demon Summoner is available for 82% less in shops such as Kinguin.

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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