Here is the full list of all 53 Straimium Immortaly achievements.
Exterminate Queeni and make it out the Cubic alive!
Bring me the head of the Queeni Emperess!
Grasp the biggy key protected by a huge skulla!
Grasp the biggy key protected by a huge whirla!
Grasp the biggy key protected by a huge smasha!
Grasp the biggy key protected by a huge spewa!
Survive the tutorial!
Exterminate Queeni and make it out the Cubicus alive!
Amass over 333 pinky blobs in the Cubicus!
Exterminate Cubicus Queeni in under 35 minutes!
Exterminate Queeni and make it out the Cube alive!
Amass over 111 pinky blobs in the Cube!
Exterminate Cube Queeni in under 15 minutes!
Exterminate 10 huge meanies in a Boss Rush!
Amass over 111 pinky blobs in a Boss Rush!
Discover all the mutatorily unlocks!
Discover all the hatily unlocks!
For I gazed within its soul, and found only perfection.
Goldify the entire Cube!
Goldify the entire Cubicus!
Goldify the entire Cubic!
Amass over 222 pinky blobs in the Cubic!
Exterminate Cubic Queeni in under 25 minutes!
Complete a crawl using the Fledgling Broodling character!
Complete a crawl using the Robotica Orbica character!
Complete a crawl using the Shamanic Monk character!
Complete a crawl using the Losty Astronauty character!
Complete a crawl using the Buttsmad Pinky character!
Complete a crawl using the Skulli Broski character!
Eradicate all 4 alternate bosses.
Complete a Cubicus crawl with the Empty Boxes and No Radar mutators active.
Complete a Cubicus crawl with the Asian Mode and Ball Busta mutators active.
Complete a Cubicus crawl without harming a single innocently little cutey pinky.
Complete a Cubic without ever bothering to use your Special Fire or Ninja Power. You must also say "Scrumdiddlyumptious!" whenever devouring Bossily hearty innards.
Complete a crawl using the Paddy Locky character!
Discover the Broodling character class!
Complete a Cubicus crawl without ever being healed.
Discover the Robotica character class!
Discover the Monk character class!
Discover the Astronauty character class!
Discover the Pinky character class!
Discover the Skulli character class!
Discoverly all rooms within the Mapography Compendium!
Discoverly all dudes within the Beastisaurus Compendium!
Findly all monsters within the Bossyomicon Compendium!
Findly all weapon types + powas of the Weaponology!
Beats a 222 hi-score in the Straima Classico Arcadey!
Findly all item types within the Itemarcania Compendium!
Murderise 5 bosses in a crawl using only lvl 1 guns!
Unlockify the tainted Cubos Incursion game mode!
Beat the foul filth of a Cubos Incursion!
Exterminate Incursion Queeni in under 45 minutes!
Amass over 555 pinky blobs in a Cubos Incursion!