A frequent question on the forum is "What makes Plague Inc: Evolved special / how is it different from the original, top-selling game?"

Hope you find this answer helpful :)

Plague Inc: Evolved combines the original critically acclaimed gameplay of Plague Inc. with significant, all-new features:

• Competitive Multiplayer - The world is unlucky enough to be infected with two plagues, but how will you win the battle for genetic dominance against your opponent? Players get all new evolutions, abilities and genes to help them fight for global control and destroy their opponent!
  
• Co-Operative Mode - Two different diseases team up to infect and destroy the world together but Humanity has new tricks up its sleeve to fight back! Work closely with your partner and use brand-new genes, traits and strategies to smash cure labs all over the world before they eradicate you.
  
• Contagious Content Creator - Hit the lab and develop your own custom scenarios - creating new plague types, worlds and in-game events. Sophisticated tools support user-generated content to let players bring their deadliest ideas to life and share them on Steam Workshop. With over 10,000 custom scenarios already released - there is always something new to infect!
  
• Blinding Graphics - Full 3D disease models take you closer to your plague than ever before, city-cams show humanity's struggle at street level, and the body scanner highlights the full effect of your mutations, organ by organ.
  
• Deadly Data - Geek out with stats and graphs; monitor infection and death levels, track government reactions and cure efforts, then review your plague's success (or failure!) with full game replays.

We also get questions about pricing. Plague Inc: Evolved costs $14.99 on PC and Mac. This includes:

• Every paid expansion pack that Plague Inc. has received over the last four years.
  
• Loads of new content updates that we have planned for the future.
  
• Significant, all-new features for PC and Mac (as listed above).