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Theory of Magic (Arcanum)

developed by mathiashjelm
rated 4.6 stars, 122 ratings
rated 4.6 stars, 122 ratings
no tags

Posted May 22, 2023. Updated May 22, 2023. Played 5214 times for a total of 28173 hours.


From a lowly Stable hand, rise to the pinnacle of Arcane Power. Outfit a lair. Learn spells. Explore dungeons and find new classes. Try separate schools of magic and focus on different intricacies of magic along the way.

NOTE: The main developer is lerpinglemur. I am one of the maintainers, who got his permission to post the game here.

This game is open source and found on: gitlab

Also feel free to join us on discord

newest comments

Dudeidka1ue March 6, 2024
+1comment score: 1

Game link pls

chunkysalsa October 18, 2023
+3comment score: 3

love the game but im stuck right now on how to acquire the ability to produce more magic gems or level stats like water, as is i can only produce blood gems and hold arcane gems (cant make them except with one piece of furniture passively). the game seems to lack a sense of direction, but despite that it's easy to continue progressing even if there is no real apparent way to move forward. another point of confusion for me is that, after unlocking a halfway decent minion, i can't activate them, so that big investment i made is just wasted at the moment until i figure out how to actually utilize them (orc shaman, big upgrade from large mouse statwise)

JanexTheHero1 October 14, 2023
+1comment score: 1

cool game :)
I like it

Termt September 21, 2023
+2comment score: 2


The reset button really doesn't have to disable dark mode too. Ow.

veois September 1, 2023
+3comment score: 3

a classic example of rpg idle games

top comments

Lustre May 22, 2023
+10comment score: 10

This was one of the better ones I've played, just wish it went a little further in depth. Albeit, it does take a while to get to the "end" of the game. You essentially get to a point where there's no more progress and gain resources forever to no end. The part I liked most was that you get to replay the game due to a mechanic and it can be vastly different depending on your choices.

prestclu May 25, 2023
+6comment score: 6

I've loved this game for a long time; arcanum / ToM is a rare type of RPG that I wish there was more of. It's really great to see that it's coming to a more accessible location for new players to find. It's a bit of a shame that it isn't being actively developed anymore, because it has so much potential, but the game as it exists today is still a very fun way to spend a few days so it'll always be something that I recommend to others.

nulledabyss June 28, 2023
+5comment score: 5

Arcanum has always been one of my favorite RPG focused incremental games. There's really nothing out there that offers anything quite like it in the genre, things come close but ultimately have different appeals from Arcanum. So I'd like to thank Lemur, Mathias, Mindedness, and the others that have worked on and maintained this game. 5/5

magician May 22, 2023
+4comment score: 4

i love this game a lot, probably one of my top games to play. It's a little confusing at times with what to do to progress but otherwise pretty great!

MuteImpulse May 22, 2023
+4comment score: 4

Awesome game! I'm going to play through it again just because it's on this website now :)

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