16 species from various fiction in the style of Meteos. In reading order (italics are speculative):

Earth Equis - Ponies (My Little Pony: Friendship is Magic)

• The sun and moon of Earth Equis are guided by the magic of the Ponies' ruler. Ponies use their influence to promote harmony.

Skecho - Raposa (Drawn to Life)

• Skecho exists as a dream-like parallel to an Earth. The Raposa venerate their artistic Creator.

Solarin - Novakid (Starbound)

• The star-like Novakid never dwell on the past, so much so that their history is unrecorded and their technology has stagnated.

Qo'noS - Klingon (Star Trek)

• The war-like Klingons, shaped by the volcanic caverns and torrential weather of Qo'noS, rule a galactic empire.

Arde - Ardeans (The Planiverse)

• Arde exists in a two-dimensional universe. As a result, rain easily floods the surface, forcing construction underground.

Limitu - Slimes (Mister Slime)

• Pegs affixed to spacetime itself litter this planet. The four-limbed Slimes use these to traverse the world.

Zeta - Greys (Urban legend)

• The binary stars of this planet bake the surface, leaving the hyperintelligent Greys to seclude themselves within vast underground complexes.

Cybertron - Transformers (Transformers)

• The robotic Transformers are able to reconfigure themselves into vehicles at will. Cybertron is the body of their creator, Primus.

Terrapinia - Funkeys (U.B.Funkeys)

• Funkeys exhibit endless variation, shaped by their environment. Tall cliffaces encouraged the rapid development of flight and teleportaion technologies.

Alternia - Trolls (Homestuck)

• Somebody manipulated this planet's society into a cruel, casted regime. All adults are conscripted, leaving a planet of children cared for by monsters.

Skaro - Daleks (Doctor Who)

• A humanoid precursor created Dalek bodies to survive their dying planet. The survival instinct installed in them twisted into a thirst for universal domination.

Urtraghus - Space Pirates (Metroid)

• Acid rain batters the surface of this planet. The Space Pirates strive for total power, endlessly modifying themselves in order to achieve it.

Earth Canide - Dogs (Bluey)

• One of many alternate Earths across the multiverse. This one has a self-domesticated populace, although war is unfortunately still commonplace.

Flatland - Polygons (Flatland)

• Flatland lays flat on the surface of a sphere. The female Polygon appears to be a line, but in reality they simply exist at a fourth-dimensional angle.

Overworld - Combine (Half-Life/Portal)

• The Combine have enslaved many planets across various dimensions; it is unknown if Overworld is their original homeplanet.

Core - Ancients (Super Mario)

• Although much fewer than in the distant past, the Ancients exhibit a passion that shapes every aspect of their inter-dimensional influence.