WARNING - ALL LINKS ON THE LIST MAY CONTAIN DISTURBING PHOTOS OF MUTATED INDIVIDUALS. YOU ARE OPENING THE PHOTOS WITH RISK OF SEEING SOMETHING THAT MIGHT UPSET YOU. THESE ARE ACTUAL PHOTOS AND NOT SOFTENED DRAWINGS OF CUTE BABBY LIONS

These are suggestions accepted, planned or considered with very high chance of success.
All approved mutations (or partially approved threads) receive a [vv] symbol. Duplicates I will just lock cause no point for me to have more than 1 of the same suggestion - don't get upset your suggestion is locked and other isn't - the idea is the same and it won, that's what counts!

If I did not approve your mutation it means I am thinking about it, waiting for more player thoughts or I didn't see it yet :o
2020 note: I stopped updating this thread too often, but did a clean up in May

Also, we have some mutations planned or are thinking about some, that aren't on the list, such as sub-mutations, rare conditions, spoilers that would ruin fun or challenges we're unsure of.

Visible since birth

Hairless - no game effect - Art change: Birth to Adult
Hairy Tail - no game effect - Art change: Birth to Adult
Ear Tufts - no game effect - Art change: Birth to Adult
Polydactyly - could give stat boost on birth - Art change: Birth to Adult. Possible pose preference to show off paws at nicer angle.
Brachycephaly - (1 mane version) - Game Effect: like Blind - Art change: Birth to Adult
Syndactyly - LINK - Game Effect: like Blind - Art change: Birth to Adult
Cleft Nose - LINK - no game effect - Art change: Birth to Adult. Possible pose preference to show off nose at nicer angle.
Double Ears - no game effect - Art change: Birth to Adult
Curled Tail - LINK - no game effect - Art change: Birth to Adult
Arachnodactyly - Game Effect: stat penalty on birth - Art change: Birth to Adult
Double Canines - game effect: hunting/patrolling/battling boosts - Art change: Lineart only, cub to adult.
Cutaneous Asthenia - Limbs that look like wings - no game effect - Art change: Birth to Adult
Leucism - like Achromia and just cover the lion with half transparent light version - Art change: Lineart Cover only, cub to adult.
Erythrism - all the dark colours have red/yellow tint - no game effect - Art change: marking recolours for all stages

Primordial Dwarfism - Game Effect: Pygmy lions, adults looking a bit like cubs still - works like Blind + cannot even breed. Dies early at 6-8 years. Big stat penalty.

Visible at Adulthood

Acromegaly - very overgrown lion, 1mane version for any type. Art change: Adult Female/Male stages different - no game effect
Overgrown Tongue - no game effect - Art change: different lineart
Excess fur for males - Hypertrichosis - planned as an applicator to match Overgrown Fur on females. Art change: Adult Male stage different. 1 mane version for any type.
Roman Nose - no game effect - Art change: Adult Female/Male stages altered. Possible pose preference to show off the nose at nicer angler.

Can show at cub-teen stages

Curly Fur - LINK - no game effect - shows at 1 year - Art change: Base only, Teen to Adult. 1 mane version.
Elongated Tail - Art change: only tail art altered - shows at 3 months - no game effect

LETHAL

Those cubs will be removed from Cub Training
Phocomelia - deformed limbs - dies at 3 months - Art: 1 Cub version
Progeria - aging super fast - dies at 1.5 year (can’t age with item) - Art: Cub and Teen versions, Cub Newborn and Young slightly altered lineart.
Amelia - lacking limbs - dies at 2 months - Art: 1 Cub version
Cebocephaly - LINK - eyes close together, squished face - dies at 2 months - Art: 1 Cub version
Noseless - LINK dies at 2 months - Art: 1 Cub version

Proteus Syndrome - whole body deformation - game effect: can’t hunt or patrol, can’t be retired into. Health messages through life - dies randomly between 2 to 8 years - Art change: Birth to Adult
Radial Hypoplasia - aka Squitten - causes short legs while hind legs are long. Cannot hunt, patrol etc, just like a Blind lion. Can generate birth message, dies randomly between 1 to 8 years - Art change: Birth to Adult

Minimal art change or not visible

The thought behind those is that those mutations could be caused by breeding to old lionesses or inbreeding via user suggestions

Cross-Eyed - Art change: could be eyes-like decors layered over the lineart, responsive to the actual eye colours - stat penalty - can't be retired into, can hunt or patrol though.

Hybrids

Things are brewing! This is kept spoiler-free.

Primal variants

There's a few more variants designed and named after ancient beasts or latin/greek words, each will have a unique trait or source.

Chimera issue

Chimera is one of most suggested mutations. The issue is that it would require two sets of lion information: Two bases, set of markings each, separate eye colours etc. Sounds like a very serious problem when coding the information - the extra tables have to be coded there, but not show up in normal lions. It is VERY difficult to do that.

Method 1 - code-wise the most complex way, not even sure if possible how I imagine - adjust the lion profile by adding another table if mutation is present to show both genetics - right side is from father, left side from mother, to make it easier just copy 100% of each parent’s looks onto respectable half (unless possible, just have normal bred looks). When bred, this lion would pass only one half of the genetics (randomly picked by script).

Method 2 - easy for coding, fast to implement. Make for example 10 versions of each half show up like Achromia - covering the original picture with a random half on top of the lineart. The genetics and markings show in a normal way on the original art, and the chimera half is just separate and not affecting gameplay. If bred, only the actual information passes, and the chimera half would not.

Method 3 - create a "shadow" lion, hidden on the account, that acts as 2nd set of the Chimerism genetics. While breeding, the script picks one of the two lions, either main or shadow. The "shadow" genetics could be viewable via a special button click. We're probably not able to add another lion info chart on the lion's page just for this mutation.

Summary: We're thinking. It's a lot of work. Not anytime soon. :(

Spoilers

Dorsal Fur - Full design - Added!
Phocomelia - Full design
Progeria - Concepts
Hairless - Concept
Brachycephaly - Concept

Note: I might update this from time to time