So I've been toying around with this concept for a Robo-riders reboot, and I wanted to post it to see what people think of it:
Aesthetic: Post-Apocalypse dieselpunk for the heroes and slightly organic cyborgs for the bad guys.
Sets: Standard lego pieces focused on oversized motor-cycle like vehicles for the heroes and monster/vehicle hybrids of the bad guys.
Setting: the world of Talos is cursed; every 115 or so years the dreaded 'Virus' returns from the depths of the earth and ravage the world; twisting people and creatures into mutants and monsters, poisoning the air and waters, and animating natural features and artificial constructs into abominations. To combat this, the ancients created four beacons scattered through the land, when the beacons are lit the Virus is banished from the surface and retreats to it's cthonic sanctuary. The beacons were hidden to avoid the mutant hordes of the Virus destroying them; only their four switches can be found and then only with help of the Robo's machine spirits that each know the location of one switch. Each cycle has six heroes chosen, the 'RoboRiders', with different element powers and able to infuse the robos in machines to acts as focuses for the Robo's and RoboRider's combined powers.
The current year is 527 of the City of Victoria, and the current team of RoboRiders start their quest to light the four beacons and drive back the virus. Their adventure will involve crossing the know world looking for the missing Robos and lighting the beacons; all the time being chased by the mutants and monsters spawned by the Virus and having to fight them off in Mad Max style vehicle combat. However two complications have occurred in their quest; a mysterious seven RoboRider has also appeared and seems to be trying to take down the current RoboRiders so that he alone can light the beacons; and one of the current RoboRiders is a cured mutant (something thought impossible by most people) who has glimpses of the Core of the Virus, which could now be defeated once and for all, and that ancient evil will not permit this threat to it's existance.
Victoria: city founded by the leader of a past team of RoboRiders, Minerva Victorio, who was active around 530-527 years before the current team. Tend to serve as a base for the RoboRiders and a stronghold of civilization in these dark times. Has a central position on the known landmass of Talos, and is the most technological advanced city, producing finished goods and power crystals to sell to nomads and other cities. The RoboRider Galvani Victorio is from Victoria.
RoboRiders: team of elemental powered heroes that can use the Robos to empower machines; their mission is to like the 4 beacons of North, East, South and West. Current team made of Galvani Victorio, Rufus and Alba Feynman, Zoey MacMidas, Sha Rakis and Vizuna. They are helped by the Robos, 16 ancient machine spirits that each know the location of one of the switches to turn on the four beacons. All current and past RoboRiders are revealed by an incident when their elemental powers are rapidly developed to protect them; for example Rufus fell into a pool of magma and crawled out without taking any damage from the heat.
Nomadic Tribes: Tribes that cross the vast plains and deserts of Talos looking for scrap and ruins from lost cities destroyed by past attacks of the Virus. Tend to also animal herders and traders. Have lower levels of technology than the city states, but occasionally have very advanced ancient technology that they scavenged. Rufus and Alba Feynman come from one scientifically focused nomadic tribe and Sha Rakis is from a different desert based tribe.
City States: Small city states, some having colonies, that have arisen between Virus attacks. Tend to be focused on a major resource and use merchants to trade. Zoey MacMidas was born in the city of Werner.
Sorcerers and Druids Covens: Small covens of magically adept individuals, they have less power than Mutant Warlocks or the RoboRiders but still capable in their own ways (such as being able to locate hidden objects, immunity to the Virus, making healing potion or place curses on evil doers). They seperate themselves from the rest of society and their covens tend to focus around sites of elemental importance; such as shrines dedicated to the past RoboRiders or naturally elemental wonders like the World Tree. Tend to be allies of the RoboRiders but the prominent Ogel familiy seems less willing to help.
Virus: an ancient evil that nearly destroyed the world in ancient times. It corrupts people, animals and inanimate objects. People become mutants, twisted beings with most of their good emotions (hope, compassion, trust, etc.) removed and only interested in spreading the virus and crushing all resistance; the most powerful mutants are called Warlocks, who control the Virus' mutation process to turn animals and objects into monsterous vehicles called abominations. Mutants are divided into raiding bands/primitive tribes based on similar mutations and these tribes compete with each other in seeing how much they can spread the Virus and thus corrupt the world, one example is the Harrowing Hawks tribe, who all had functional wings and parts of the body covered in leaves. Vizuna used to be a mutant, but she was latter cured.
Galvani "Van" Victorio - the Power RoboRider - an engineering noble from the power district of the city of Victoria, being a descendant of the city's founder (Minerva Victorio). He is the team leader (by the fact no-one else wanted the position), but has a lot of self doubt in the situation and either takes on too much work for himself or takes on any advice on how to lead, no matter how useless or ill intentioned. However he is a good leader when he doesn't listen to his doubts, along with being brave, loyal and charismatic. Van has the least control of his elemental powers, but has the largest pool of elemental energy and modifies his machines so that he can power them with his Electricity powers.
Rufus Feynman - the Lava RoboRider - a member of a tribe of nomadic scientists and twin brother of Alba Feynman. He was crippled in a childhood accident, requiring him to use a wheel chair to move around. However the incident also revealed his fire powers as he survived falling into a pool of magma, and it was his hitting the bottom of it caused his spinal image. Rufus is a talented scientist and engineering, being intelligent, insightful and able to pick up on details; This all allows him all massive level of control with his elemental power, allowing it to be used as blow torch or welding torch. However he is too cautious and overly protective of his team mates.
Alba Feynman - the Frost RoboRider - a member of a tribe of nomadic scientists and twin sister of Rufus Feynman. She is energetic and passionate, but is still a brilliant scientist; she tends to design multiple experiments every day and coming up with multiple hypothesis for any new problem the team face. Her elemental power of Ice is less developed than her brother's power, but she is more creative and spontaneous, leading to unpredictable results for her enemies to deal with.
Zoey MacMidas - the Onyx RoboRider - born as to an outcast family in the city of Werner that had no claim to a mine shaft. After she lost her parents, Zoey had to make her own way in the world; she surprisingly excelled as a business woman, and eventually became a traveling merchant before being chosen as a RoboRider. Her skills in bargaining, dealing and stock management are incredibly useful for the team, however she often gets them on sidequests and problems in bargains she makes; Zoey can be a little selfish and cynical about people, but is optimistic of the party's success and is good at spotting and taking opportunities. Develops her powers the least, but still uses her earth manipulation to get cheap shots on her opponents.
Sha Rakis - Dust RoboRider - the trainee shaman of a nomad tribe in a desert; his blindness from birth caused him to develop his latent wind powers, proving him as being a future RoboRider. He was developed his abilities to be able to sense disturbances in nature, helped by his pet scorpion (the totem of his people), and to get a 3d sonar sense. Sha usually has good advice, but from the moment he could understand he was raised to be a champion of justice and good in the world so he has a poor time relating to people as equals and can seem condescending. Sha is also the best at detecting and dealing with the Robos, having been trained to do so from his earliest days; he usually is in charge of them when they are not infused into a machine.
Vizuna - Swamp RoboRider - A former mutant, she is the only person known to be purified of the Virus. This happened when her tribe (Harrowing Hawks) attack the World Tree, an primeval source of jungle magic; when she destroyed it's core, the tree released a burst of it's power; enfusing her with the Jungle essence and making her the Swamp RoboRider and purging the Virus' hold on her (the rest of her tribe was less effected as they were outside the tree fighting off a bunch of a druid defenders, although their feathers became leaves). Vizuna has poor social skills due to being raised in society entirely dedicated to raiding and corrupting the world, and often misunderstands social situations and common objects; however her up bringing has made her the best fighter in the party, physically the stronger and a brilliant strategist (especially against mutants); she also has insights into the Core of the Virus and it's probable weaknesses. Vizuna is compassionate, espcially to mutants and hopes to find a way to cure them all so that they will be free of the Virus' control. Her elemental powers are on the weaker end, but she has a large reserve of magical power and can heal people and cure diseases and pollution. Has a love of flying as all of her mutant tribe have wings which she lost when she became purified.
Robos - small machine spirits that the RoboRiders can infuse into machines to empower them (most of the RoboRider's sets would represent vehicles infused with a particular Robo). Most have been scattered over the world after the last time the Virus attacked, meaning the RoboRiders would have to find them. Based off of the original RoboRider Wheels; and the current RoboRiders would only start with a hand full at the start (likely Scout, Fuel, Driller, Rope, Flame and Grab), and the Boss RoboRider has one (Skeleton or Dynamite).
The Core of the Virus - the ancient source of evil, it constantly spreads it's dark influence on the world with regular accelerated periods every 115 years as it increases production rates. It usually leaves it's war in the hands of the Mutants, but Vizuna's purification have left it twitchy and hands on about the RoboRiders situation. Most of the time it seems to just hate humanity and seems a little jaded by the continual cycle of war that it finds itself in. Is a shapeshifter, usually appearing as a human made of shadows or as a giant floating sphere; true form is unknown.
Vizduas - Warlock and younger brother of Vizuna, he is persistent on tracking down and corrupting his sister; partly based on a twisted sense of community that does not like people leaving and being happy or free. Vizdua has many powerful abominations in his personal army (the Hallowing Hawks) and has access to terrible curses and spells as is his right as a warlock. Tends to use flying machines and monsters when he can, but does use land based options occasionally (usually when he has no choice). Has leaves covering patchs of his skin and two large and functional wings as his mutations.
Zlammer - an elite mutant warrior hand crafted by the Core of the Virus, he is the strongest of all known mutants. Immensely skilled in combat, ambush and tracking and with mild Warlock powers, he is ruthless in his mission to crush the RoboRiders of this cycle and is fearless to a fault. Seems to have regenerative powers and a new set of mutations everytime he fights the RoboRiders. He is usually silently stoic but will never miss an oppurtunity to make a bad pun; this along with his heterochomia of a completely white eye and a complete black eye are his defining traits. If he creates abomiations to server him they are usually vaguely draconic.
Archgeneral Lilliana - another agent sent directly by the Core of the Virus, her mission is specifically to take command of mutant tribes and lead them to victory against the RoboRiders. She is logical, pragmatic and domineering, making her a terrifying general to face in battle. Like Zlammer she is always testing new strategies for taking down the RoboRiders and has amassed several tribes under her control. Her mutations include red skin, three eyes and attenta.
Drocsid - a mutant who has few obvious mutations and hides the ones she does have under cybernetics. She likes to infilitrate human settlements and cause problems for the RoboRiders by sowing lies and confusion. Has a personally vendetta with Rufus and Alba as they revealed one of Drocsid's schemes prior to becoming RoboRiders; Drocsid also has a occasional business relationship with Boss Rider, who also wants to take down the RoboRiders for personally reasons. This relationship is complicated by the fact that Boss does not fully trust Drocsid and that she has developed an almost romantic attachment to him - something that is not only rarely seen in Mutants but is seen as an abomination and weakness by them.
Boss Rider - a mysterious individual who seems to be able to use the Robos like the RoboRider can; he has no obvious elemental powers but is immune to magical effects and take control of spells and elemental abilities at will. His goal seems to defeat the RoboRiders and activate the beacons himself, becoming the hero of the world. In combat he is cunning, skilled and brave, and can easily out compete any individual RoboRider, but is usually outmatched when they work as a team. His true identity is unknown to most, even to Drocsid, who seems to be his closest ally most of the time. Also has a hook for his left hand.
General plotline would be the first year or two dedicated to finding the Beacons and their Switchs, with the RoboRiders finding clues to the Core of the Virus and it's nature. The third and final year would be going into the subterrean world that the Virus has completely dominated and ending it's reign of terror by defeating the Core of the Virus and using it's power to cure all the mutants.
Edit: Immediately after publishing this I realised that naming the villain the 'Virus' and talking about it during the current situation may not have been the best choice of words, so I am sorry if I offended or distressed anyone.