It reminds me of some festivals that I read in fanfictions:
- The Festival of Mortilus is a kind of Cybertronian Halloween. It celebrates the victory of the Guiding Hand (the ancient Cybertronian gods) over Mortilus (Death, who was once one of their number), which, in the IDW continuity, is supposedly what made Cybertronians essentially immortal. The Festival includes a lot of customs that would be familiar to anyone who's celebrated Halloween: costumes, sweets, spooky stories, and special lanterns (although trick-or-treating is new to Cybertronians!).
- Every 50 vorns Cybertron celebrates the Festival of the Five. Dedicated to a different member of the Guiding Hand each time, it cycles through them all to begin again every 250 vorns. A unique race/contest is held at each Festival to find the next Champion of the patron god to receive the god's blessing and the right to claim whoever they want as their mate. The chosen mech then has the option to either bond with the Champion at the closing of the Festival or to live with them for a year of courtship, after which they either bond or go their separate ways.
Primus - the Light-giver and Life-giver
Mortilus - the Death-bringer
Solomus - Wisdom Incarnate
Epistemus - Knowledge Personified
Adaptus - Blessed with an Infinity of Shapes
-The race honoring Primus is a straight-up race, on different tracks.
-The race honoring Mortilus is more of a ultimate-fighter thing, a tournament–not a brawl, a series of rounds of fighting until the final “title bout” to choose the winner.
-The race honoring Solomus one could be that puzzle-solving kind of thing, like the show The Amazing Race, maybe?
-The race honoring Epistemus I’m not quite sure, but knowledge and air seem linked somehow in my brain so maybe that’s the race for the flyers.
-The race honoring Adaptus one is hard-core obstacle course, off-road, up mountains, off cliffs, through swamps and all sorts of shit.