Gerald M. Kilby Books in Order

Gerald M. Kilby has written 21 books, published between 2015 and 2026. The first book is Reaction / Chain Reaction (2015) and the newest is Shadow of Elysium (2026). Publication order is the reading order below.

Books
21
Published
2015–2026
Pages on record
1,540 in 6 of 21 books

Gerald M. Kilby writes science fiction. Colony Mars is the longest sequence, Colony One Mars (2016) through Jezero City and Surface Tension, beside the Belt books, Moon Base Delta and the Reaction thrillers. Reaction (2015) opens a catalogue of 21 titles reaching Shadow of Elysium (2026). Kilby publishes about two titles a year and the catalogue is open.

Source: composed

How many Gerald M. Kilby books are there?

Gerald M. Kilby has 21 books, released between 2015 and 2026. They include 4 series and 1 title listed outside any series.

Gerald M. Kilby Books in Publication Order

The table lists all 21 Gerald M. Kilby books in the order they were published, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of November 2026.

  1. 1
    Reaction / Chain ReactionReaction #12015 · confirmed 1/4
    2015–
  2. 2
    Colony One MarsColony Mars #12016 · 240 pages · confirmed 1/4
    2016240
  3. 3
    Colony Two MarsColony Mars #22016 · 242 pages · confirmed 1/4
    2016242
  4. 4
    ExtractionReaction #22016 · confirmed 1/4
    2016–
  5. 5
    Colony Three MarsColony Mars #32017 · 276 pages · confirmed 1/4
    2017276
  6. 6
    Jezero City: Colony Four MarsColony Mars #42017 · 252 pages · confirmed 1/4
    2017252
  7. 7
    EntanglementBelt #12018 · 258 pages · confirmed 1/4
    2018258
  8. 8
    EntropyBelt #22018 · confirmed 1/4
    2018–
  9. 9
    EvolutionBelt #32018 · confirmed 1/4
    2018–
  10. 10
    Surface Tension: Colony Five MarsColony Mars #52019 · 272 pages · confirmed 1/4
    2019272
  11. 11
    EnigmaBelt #42020 · confirmed 1/4
    2020–
  12. 12
    Gizmo OriginColony Mars #62020 · confirmed 1/4
    2020–
  13. 13
    Plains of Utopia Mars Colony 6Colony Mars #72020 · confirmed 1/4
    2020–
  14. 14
    ExodusBelt #52021 · confirmed 1/4
    2021–
  15. 15
    Winds of MarsColony Mars #82021 · confirmed 1/4
    2021–
  16. 16
    Solar StormMoon Base Delta #12022 · confirmed 1/4
    2022–
  17. 17
    EmergenceBelt #62022 · confirmed 1/4
    2022–
  18. 18
    Resource ControlMoon Base Delta #22023 · confirmed 1/4
    2023–
  19. 19
    Power VacuumMoon Base Delta #32023 · confirmed 1/4
    2023–
  20. 20
    Brain Gain2024 · confirmed 1/4
    2024–
  21. 21
    Shadow of ElysiumColony Mars #92026 · confirmed 1/4
    2026–

Gerald M. Kilby books grouped by series

Each title below is a row in the publication-order table above. None of these groups has a reading-order page of its own on this site.

Colony Mars in order

9 books
  1. 1. Colony One Mars
  2. 2. Colony Two Mars
  3. 3. Colony Three Mars
  4. 4. Jezero City: Colony Four Mars
  5. 5. Surface Tension: Colony Five Mars
  6. 6. Gizmo Origin
  7. 7. Plains of Utopia Mars Colony 6
  8. 8. Winds of Mars
  9. 9. Shadow of Elysium

Belt in order

6 books
  1. 1. Entanglement
  2. 2. Entropy
  3. 3. Evolution
  4. 4. Enigma
  5. 5. Exodus
  6. 6. Emergence

Moon Base Delta in order

3 books
  1. 1. Solar Storm
  2. 2. Resource Control
  3. 3. Power Vacuum

Reaction in order

2 books
  1. 1. Reaction / Chain Reaction
  2. 2. Extraction

Standalone books

1 book

1 Gerald M. Kilby title here is not listed as part of any series.

Do you have to read Gerald M. Kilby books in order?

You only need to read Gerald M. Kilby books in order within each series: the books listed here span 4 separate series, and each series has its own publication order.

Where to start with Gerald M. Kilby

Start with Reaction / Chain Reaction (2015), the earliest published title.

What is the newest Gerald M. Kilby book?

Shadow of Elysium (2026) is the newest Gerald M. Kilby book released so far.

Is there a new Gerald M. Kilby book coming?

No next Gerald M. Kilby book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

Gerald M. Kilby at a glance

Still publishing
Gerald M. Kilby published a book as recently as 2026.
Release pace
Gerald M. Kilby books have appeared more than one a year on average.
Length
1,540 pages across the 6 of 21 books with a recorded length, a median of 255 pages each.
Busiest decade
Most Gerald M. Kilby books, 11 of 21, were published in the 2020s.

When Gerald M. Kilby books were published

Publication distribution by decade, showing when Gerald M. Kilby titles appeared. 2020s was the most productive decade with 11 titles.

2010s
10
2020s
11

21 books total across 2 decades. Decade reflects the year each title was first catalogued.