The Core War Newsletter was the official newsletter of the ICWS, published between March 1987 and Fall 1994. There were 18 issues, first published by founding editor William R. Buckley and later by Jeff Spira, Mark A. Durham and Jon Newman.

The Core War Newsletter Issue 1, March 1987

  1. "Reflections on the First International Core War Tournament in Boston" by A. K. Dewdney
  2. "Comments on the 1986 Philadelphia Convention of the AAAI" by Ed Hartnett
  3. "International Core War Society Member Name and Address List, Part 1"
  4. "The View from Within" by William R. Buckley
  5. "Society News"
  6. "Letters to the Editor"
  7. "A Message from the Director" by Mark Clarkson
  8. "Reader Survey"
  9. "Up Front"

The Core War Newsletter Issue 2, June 1987

  1. "Creative Tinkering" by Chip Wendell
  2. "MOV #0 -1 Considered Not Harmful" by Mark A. Durham
  3. "Late Night Contemplations of a Core War Enthusiast" by Douglas McDaniels
  4. "The View from Within" by William R. Buckley
  5. "International Core Wars Society Member Name and Address List"
  6. "Society News"
  7. "Up Front"
  8. "Letters to the Editor"
  9. "A Message from the Director" by Mark Clarkson

The Core War Newsletter Issue 3, September 1987

  1. "Creative Tinkering" by Chip Wendell
  2. "Unused Operands" by Mark A. Durham
  3. "Beating IS2" by John R. Perry
  4. "Musings of a New Core War Standard" by Thomas Gettys
  5. "The View from Within" by William R. Buckley
  6. "International Core Wars Society Member Name and Address List"
  7. "Society News"
  8. "Up Front"
  9. "Letters to the Editor"

The Core War Newsletter Issue 4, Winter 1988

  1. "Core Words" by Robert R. Reed, III
  2. "A Core War MCP - an analysis of the ICWST '87 entries" by Kenneth W. Clapp and Robert R. Reed, III
  3. "Old School vs. New School" by Mark A. Durham
  4. "Effective MARS Construction" by Mark A. Durham
  5. "Report on the 2nd Annual ICWS Tournament" by William R. Buckley
  6. "International Core Wars Society Member Name and Address List"
  7. "The View from Within" by William R. Buckley
  8. "Musings of a New Core War Standard" by Thomas Gettys
  9. "Society News"
  10. "Up Front"
  11. "Letters to the Editor"
  12. "Corrections"

The Core War Newsletter Issue 5, Spring 1988

  1. "Core War Genes, a New Standard" by Andrew Daiber
  2. "About a Recursive Use of the SPL Instruction" by Alexander Burtsev and Eugene P. Lilitko
  3. "Core Wars for Real" by Ed Gottsman
  4. "International Core Wars Society Member Name and Address List"
  5. "The View from Within" by William R. Buckley
  6. "Society News"
  7. "Up Front"
  8. "Letters to the Editor"

The Core War Newsletter Issue 6, Summer 1988

  1. "Core Wars '88 - A Proposed Standard" by Thomas Gettys
  2. "Reflections About MIDGET" by Alexander Burtsev and Eugene P. Lilitko
  3. "Instruction Set Ideas" by Thomas Gettys
  4. "International Core Wars Society Member Name and Address List"
  5. "The View from Within" by William R. Buckley
  6. "Society News"
  7. "Up Front"
  8. "Letters to the Editor"

The Core War Newsletter Issue 7, Fall 1988

  1. "Predatory Programming" by John R. Perry
  2. "A Report from ICWST'88" by William R. Buckley
  3. "The Hackers 4.0 Conference" by William R. Buckley
  4. "Ed's Ramblings" by Jeff Spira
  5. "International Core Wars Society Member Name and Address List"
  6. "Society News"
  7. "Up Front"
  8. "Letters to the Editor"
  9. "Quarterly Challenge"

The Core War Newsletter Issue 8, Summer 1990

  1. "The View from Within" by William R. Buckley
  2. "Self-Damaging Redcode" by Mark A. Durham
  3. "Letters to the Editor"
  4. "Ed's Ramblings"
  5. "Up Front"
  6. "ICWS Member Name and Address List"
  7. "Society News"

The Core War Newsletter Issue 9, Fall 1990

  1. "An Interpretation of Arbitrary Expressions in the CWS'88 Standard" by Jon Newman
  2. "Something Old, Something New" by Mark A. Durham
  3. "The 1989 German Branch Section Core War Tournament" by Christoph Döderlein and Thomas F. Moser
  4. "Letters to the Editor"
  5. "The MADgic Corner" by Mark A. Durham
  6. "Quarterly Challenge"
  7. "ICWS Membership Directory"
  8. "Society News"

The Core War Newsletter Issue 10, Winter 1991

  1. "A Survey of Core War Systems" by Mark A. Durham
  2. "Three Proposals for Future Core Wars Standards" by Jon Newman
  3. "Five Years of Core War" by William R. Buckley
  4. "Letters to the Editor"
  5. "The MADgic Corner" by Mark A. Durham
  6. "ICWS Membership Directory"
  7. "Society News"
  8. "Challenge"

The Core War Newsletter Issue 11, Spring 1992 PDF / PS

  1. "The Past, Present and Future of the ICWS" by Mark A. Durham
  2. "A Letter From the New Director" by Jon Newman
  3. "Multi-Tasking Core Wars" by Vinay Gupta
  4. "Core War Simulator Certification Proposal" by Jon Newman
  5. "The MADgic Corner"
  6. "Quarterly Challenge"

The Core War Newsletter Issue 12, Summer 1992 PDF / PS

  1. "Another Version of Core War" by Bernd Menzel
  2. "Letter From the Director" by Jon Newman
  3. "The 1991 ICWS Tournament Results" by Mark A. Durham
  4. "Electronic Update" by Mark A. Durham
  5. "The MADgic Corner"
  6. "Quarterly Challenge"

The Core War Newsletter Issue 13, Fall 1992 PDF / PS

  1. "From Proteus to Smooth Noodle Map 6, Part I" by Matthew Hastings
  2. "Pardon Me, But Your Teeth Are In My Neck" by Chris Lindensmith
  3. "Glossary"
  4. "Creating Mobile Warriors Without Loops" by William Hamaker
  5. "The MADgic Corner"
  6. "Quarterly Challenge"

The Core War Newsletter Issue 14, Winter 1993 PDF / PS

  1. "From Proteus to Smooth Noodle Map 6, Part II" by Matthew Hastings
  2. "State of the Society Address" by Jon Newman
  3. "ICWS Tournament ’92 Results" by Jon Newman
  4. "The MADgic Corner"
  5. "Quarterly Challenge"

The Core War Newsletter Issue 15, Spring 1993

  1. "Comments on the Draft Standard" by Jon Newman
  2. "Draft Standard: ICWS'94" by ICWS'94 Standard Committee
  3. "David vs. Goliath" by Brian Turner
  4. "Self-Repairing Warriors ("Four Musketeers")" by Jon Newman
  5. "From the Editor" by Jon Newman, Director of the ICWS
  6. "Featured Fighters: RotLD 2.2 and Leprechaun 1b" by Nandor Sieben and Anders Ivner

The Core War Newsletter Issue 16, Summer 1993

  1. "Now Available: The Big Disk of Core War" by Jon Newman
  2. "PC-Robots" by Paul Smith
  3. "Standard '94: The Return of Modifiers" by Mark Durham
  4. "Helping Goliath Win: Dereference and Attack" by Bryan Turner
  5. "Coder's Corner: Table-Driven Tokenizers" by Jon Newman
  6. "From the Editor" by John Newman, Director of the ICWS
  7. "Featured Fighters: Griffin 2 and Twimp" by Anders Ivner and Monika Keindl
  8. "Quarterly Challenge Correction" by Bryan Turner

The Core War Newsletter Issue 17, March 1994 PDF / PS

  1. "Annual State of the Society Address" by Jon Newman
  2. "The 1993 Annual ICWS Tournament" by Jon Newman
  3. "Electronic Update" by Mark A. Durham
  4. "The MADgic Corner"

The Core War Newsletter Issue 18, Fall 1994 HTML / PDF / PS

  1. "Letter From The Director" by Jon Newman
  2. "Imp Rings, Part I" by Steven Morrell
  3. "RoboWar — A Macintosh Combat Game" by Jeff Lewis
  4. "How Can You Train Warriors?" by Adam Ryba
  5. "The MADgic Corner"