Resistance 2018 is a game played on Twitter created to promote the film, Terminator Salvation.
To play the game, users follow the resistance's feed on Twitter where they are asked to answer trivia questions and decipher codes. Players who answer the most questions can earn points and achieve higher ranks in the resistance army.
Messages will also include Skynet warnings, updates about the Terminator Salvation film, and ranking updates.
"Members of the human resistance are communicating with each other through Twitter. The Resistance is able to "intercept" Skynet communications, but they are decoded, incomplete or unanswered. The Resistance is turning to the Resistance2018 community to help complete these intercepts and broadcast messages in support of the cause."