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Level up - It's an RPG World #6

Level Up It’s an RPG world – Book 6: Retribution: An Earth Apocalypse System Integration LitRPG Adventure novel

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Level Up It’s an RPG world – Book 6: Retribution

In a world overrun by alien invaders, Leo Armstrong rises to lead the fight for humanity. "Retribution" is the electrifying 6th book in the "Level Up - It's an RPG World" series, filled with epic battles, tactical genius, and a relentless struggle for survival.
Join Leo as he transforms Great Falls from a besieged city into a thriving kingdom. With the help of the enigmatic AI System, he faces new challenges and fierce enemies on his quest to secure peace and prosperity. From blood-soaked swamps to icy battlegrounds, every mission is a high-stakes adventure that will leave you on the edge of your seat.
Perfect for fans of military sci-fi and RPG adventures, this gripping tale of heroism and resilience is a must-read.
Don’t miss out on the action. Grab your copy of "The Kingdom of Great Falls" today and join the battle for humanity’s future!
Order now and start your adventure!

208 pages, Kindle Edition

Published July 20, 2024

105 people are currently reading
4 people want to read

About the author

Craig Zerf

171 books117 followers
Craig Zerf is a full-time writer who has been awarded the Golganooza Gold medal for Fantasy as well as being voted 'Best Read' by radio BBC United Kingdom.

His novels have been translated into French, Portuguese, Italian, Spanish and German.

Craig has lived in America, Africa and Europe and now resides in England with his wife and two imaginary cats.

His books have reached the number one Best Seller spot in both the United Kingdom and Germany and he reckons that writing is about the most fun that you can have without actually blowing things up!

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Community Reviews

5 stars
76 (56%)
4 stars
30 (22%)
3 stars
14 (10%)
2 stars
8 (5%)
1 star
7 (5%)
Displaying 1 - 5 of 5 reviews
688 reviews9 followers
October 24, 2024
No more Peaceful people, WAR!!!

All the known and unknown territories are attacked by aliens, the Elvin Princess has been robotic-humanish kidnapped, and lots of different races are killed...
Leo and his team won't stand by and wait, jumping into action to rescue the princess...
Nordik ice aliens need a visit too. Nothing like "Kicking ..ss!"

"Remember those fallen!" is the war cry.

Really fast intense fighting. Leo feels the stress to lead the races to War and the loses of life, but only he must push forward!
"Suprise!" visit at the end!

I really loved this story and it was written without confusion in most battles.

Read in 2 days
7 reviews
July 17, 2025
Nothing new has happened in 2 books and the current invasion arch is a drag. Doubly so when the MC has had zero progression since the beginning of the invasion. The beginning of the series was system apocalypse survival fun, every book after has been worse than the previous. So much wasted potential in this series
212 reviews
July 22, 2024
Was there a point to all of this ?

This just goes on and on without any direct and just keeps moving. There are so many plot holes that it's like Swiss cheese also was there and ending to this I couldn't tell.
1,081 reviews7 followers
July 26, 2024
Excellent

Well crafted fun story with high levels now and lots of challenges. City still seems small for its power, and how much of earth it controls.
Profile Image for LaziMantis Vasquez.
511 reviews
August 16, 2024
Good book

Another excellent book and awesome read wish all the combat didn't go to tech weapons I'm not really into sci-fi but I will continue to read this series
Displaying 1 - 5 of 5 reviews

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