Deltarune Wiki

Rudinn is an enemy encountered in Field following King's orders. It later appears as an NPC in various locations.



Rudinn's body looks like a slug with diamond motifs on it. They have a single visible arm holding a diamond-shaped dagger and they wear a diamond-shaped hood on their head. Their eyes are also diamond-shaped. Rudinn's skin is white while the other colors of their design are various shades of greens.


Rudinn appears to care a lot about its wealth, constantly speaking about money and praising the person who paid them. They have even traded their beds for jewelry. They also don't seem to like their job very much, as they can be easily convinced to stop fighting, but their greed for jewels seems to be their priority.

Main Story[]

Chapter 1[]

After Lancer, a Rudinn is the second enemy encountered in the game, in the Field. Various Rudinns appear later through Field, with additional team members such as Hathy and Jigsawry.

Past the Field, Rudinns stop appearing as enemies, instead appearing as characters. At the Bake Sale, a Rudinn serves as a vendor, selling a Choco Diamond for 40 D$.

Several Rudinns appear in Card Castle, including Susie's cell guard who she "invited" to the trash can. Two Rudinns can be found in Rudinn's room on Floor 1F. They sold their beds for "(Normal everyday riches, acquired from a legitimate source.)" The Rudinn on the right gives Kris a Choco Diamond, and assumes that they "tamed the beast." This only happens if no Rudinns were defeated through violence. Otherwise, the party can apologize to this Rudinn if exactly one Rudinn was defeated.

If no enemy was defeated through combat, many Rudinns help to overthrow King at the end of his battle.

In Battle[]

Appears With[]


  • Diamond Cutter: Diamonds spawning on the top of the Bullet Board and aiming somewhere in the fighting area
  • Diamond Release: Diamonds spawning from below that move upwards, damaging on contact.


  • Several conditions allow for Rudinn to be spared:
    • Convincing Rudinn at least once
    • Sparing 10 times
    • Using X-Flatter or S-Flatter on Hathy while Rudinn is also present
    • Using the Glowshard on Rudinn
  • Lecturing makes all enemies tired, allowing Ralsei to Pacify them.
    • Lecturing again tires Rudinn and allows it to be spared.
    • Reading the manual also makes Rudinn tired.
  • A Rudinn reduced to 40 HP or lower becomes Tired, allowing Ralsei to Pacify them.


  • Long live the guy who pays us! [Neutral]
  • I'm just a normal person... [Neutral]
  • Face my Diamond Cutter! [Neutral]
  • Yeah I guess that makes sense... [Convince]
  • (Yawn)... What? OK... [Lecture]

Flavor Text[]

  • This ambivalent diamond isn't any girl's best friend. [Check]
  • Rudinn drew near! [Encounter]
  • A necklace of Rudinns blocks your path! [Encounter x2]
  • Rudinn and Hathy blocked the way! [Encounter with Hathy]
  • Various guys appeared! [Encounter with Hathy and other Rudinn]
  • Smorgasboard. [Encounter with Hathy and Jigsawry]
  • A different Rudinn from last time drew near! [First repeat encounter]
  • Assumedly another different Rudinn appeared! [Other repeat encounters]
  • Smells like jewelry. [Neutral]
  • Rudinn dislikes its boss, but doesn't care enough to quit. [Neutral]
  • Rudinn is thinking about elaborate stones. [Neutral]
  • Rudinn is glimmering plainly. [Neutral]
  • Rudinn has no strong opinions one way or the other. [Neutral]
  • You told Rudinn to quit fighting. It was utterly swayed. [Convince]
  • Rudinn became enraptured! The GLOWSHARD disappeared! [Using Glowshard]
  • Rudinn is starting to fall asleep. [Tired]
  • Rudinn's luster begins to fade. [Low HP]
  • Rudinn is alright with not fighting. [Spare conditions met]



  • Rudinn's appearance and attacks are based on the diamond card suit.
  • A group of Rudinns is called a "necklace" according to the battle entry text, "A necklace of Rudinns blocks your path!"
    • This is presumably a reference to the fact that jewelry like necklaces can be made out of diamonds.
  • Rudinn (along with Lancer, Hathy, Clover, King, Jevil, and the uncredited King of Diamonds) was designed by kanotynes.
    • With the exception of Jevil, all of kanotynes's characters were fully designed by March 2012 - 6 years prior to the release of Deltarune.[1]
      • According to kanotynes, the characters were originally created for her design class, having volunteered to draw 52 unique playing card designs.[2]
      • Rudinn's earliest concept was first posted on Tumblr on March 15, 2012 as a character on a jack of diamonds playing card.[3]
  • Their Recruits bio contains a reference to the Pink Floyd song, Shine On You Crazy Diamond.
  • In the Japanese localization, they are known as モンディ [Mondi].
  • If exactly one Rudinn was defeated violently, it is still possible to get the peaceful ending of Chapter 1 by apologizing to the Rudinn in Card Castle. Rudinn and Hathy are the only enemies which can be apologized to in this manner.[4]
  • A Rudinn is shown when Ralsei explains The Roaring.


  1. 1.0 1.1 just finished the face cards. - kanotynes on Tumblr, March 27, 2012.
  2. The reason I made them in the first place was for my design class though. - kanotynes on Tumblr, March 29, 2012.
  3. working on playing card designs for one of my classes. - kanotynes on Tumblr, March 15, 2012.
  4. Apologize to darkners to get the pacifist ending - YouTube