By request of @TheDooge on Twitter, here is a complete list of individual Tick comics, not in exact chronological order, but at least something like a suggested reading order.
12. The Tick #12 (easy enough so far; this is the entirety of the Edlund series, from 1988-1993)
13. The Tick Pseudo-#13 (this is not a real #13. It’s by Marc Silvia and Mychailo Kazybrid, and is not considered canon; from 2000)
14. The Tick Karma Tornado #1
15. The Tick Karma Torndao #2
16. The Tick Karma Tornado #3
17. The Tick Karma Tornado #4
18. The Tick Karma Tornado #5
19. The Tick Karma Tornado #6
20. The Tick Karma Tornado #7
21. The Tick Karma Tornado #8
22. The Tick Karma Tornado #9 (this series started as a showcase for Chris McCulloch [aka Jackson Publick of Venture Bros], but he left after three issues to work on the Tick cartoon, I believe. It became a sort of anthology series for the last three issues. Part of the main series, but pseudo-canonical at best. From 1993-1995.)
24. The Tick Big Blue Destiny #1
25. The Tick Big Blue Destiny #2
26. The Tick Big Blue Destiny #3
27. The Tick Big Blue Destiny #4
28. The Tick Big Blue Destiny #5
31. The Tick Luny Bin #3 (These series–Tick’s Back through the Luny Bin trilogy–are the stories that pick up the canonical storyline of the series [though not directly addressing many of Edlund’s unfinished story threads. These are by Eli Stone [not the psychic lawyer]. From 1997-1998.)
32. The Tick’s Big Yule Log Special 1998 (pretty sure this actually came out Dec 97)
33. The Tick’s Big Romantic Adventure #1
34. The Tick’s Big Summer Fun Special #1
35. The Tick’s Big Back to School Special #1
36. The Tick and Arthur #1
37. The Tick and Arthur #2
38. The Tick and Arthur #3
39. The Tick and Arthur #4
40. The Tick and Arthur #5
41 The Tick and Arthur #6 (These issues more or less encompass Sean Wang’s main run on the series. The Specials ran concurrently with Eli Stone’s work, while Tick and Arthur #1 picks up right where the Luny Bin trilogy ends. From 1998-2000.)
42. The Tick Heroes of the City #1
43. The Tick Heroes of the City #2
44. The Tick Heroes of the City #3
45. The Tick Heroes of the City #4
46. The Tick Heroes of the City #5
47. The Tick Heroes of the City #6 (This was an anthology series that ran concurrently, in alternating months, with The Tick and Arthur. From 1999-2000.)
48. The Tick’s Big Yule Log Special 1999 (Dec 1998)
49. The Tick’s Big Summer Annual #1 (1999)
50. The Tick’s Big Halloween Special 1999
51. The Tick’s Big Yule Log Special 2000 (Dec 1999)
52. The Tick’s Big Year 2000 Spectacle
53. The Tick’s Big Tax Time Terror
54. The Tick’s Mother’s Day Special
55. The Tick’s Massive Summer Double Spectacle #1
56. The Tick’s Massive Summer Double Spectacle #2
57. The Tick’s Big Cruise Ship Vacation Special
58. The Tick’s Big Halloween Special 2000
59. The Tick’s Big Yule Log Special 2001 (Dec 2000) (These holiday specials ran concurrently with the Sean Wang run on the series, more or less outlining their own continuing storyline with the Big Year 2000 Spectacle more or less picking up the main story thread from where Tick and Arthur Ended. The stories switched off between being written by Marc Silvia and Clay & Susan Griffith, with art by various artists.)
60. The Tick’s Incredible Internet Comic (A print version of a comic originally run online, the first full-color Tick comic. By Gabe Crate, from 2001.)
66. The Tick Color #6 (First full series in full color, of course. This series picks up the main story from the last Yule Log Special. Written by Marc Silvia with art by Marc Sandroni and Mychailo Kazybrid.)
67. The Tick’s Big Halloween Special 2001
68. The Tick’s Big Red ‘n’ Green Christmas Spectacle (Dec 2001)
69. Introducing the Tick (From 2002, to coincide with the launch of the live action TV series.)
70. The Tick’s Golden Age Comic #1
71. The Tick’s Golden Age Comic #2
72. The Tick’s Golden Age Comic #3 (This is a non-continuity story spoofing Golden Age comics. By Marc Silvia and various artists, from 2002.)
73. The Tick’s Big Xmas Trilogy #1
74. The Tick’s Big Xmas Trilogy #2
75. The Tick’s Big Xmas Trilogy #3 (from 2002)
76. The Tick Days of Drama #1
77. The Tick Days of Drama #2
78. The Tick Days of Drama #3
79. The Tick Days of Drama #4
80. The Tick Days of Drama #5
81. The Tick Days of Drama #6 (This picks up the main story thread. By Clay & Susan Griffith and Dave Garcia, from 2005-2006.)
82. The Tick Comic-Con Extravaganza (From 2007.)Â
83. The Tick’s 20th Anniversary Special (From 2008, an anthology by tons of creators [including me!].)
84. The Mangalicious Tick #1
85. The Mangalicious Tick #2
86. The Mangalicious Tick #3
87. The Mangalicious Tick #4 (A non-continuity manga spoof by the Robbins Studio. From 2009.)
88. The Tick and Artie #1
89. The Tick and Artie #2 (These are actually from 2002, but they are completely separate from the main continuity, about an actual tick and moth. By Bob Polio.)
90. The Tick New Series #1
91. The Tick New Series #2
93. The Tick New Series #3
94. The Tick New Series #4
95. The Tick New Series #5
96. The Tick New Series #6
97. The Tick New Series #7
98. The Tick New Series #8
99. The Tick Free Comic Book Day Special 2011
101. The Tick #101 (These are all by Les McClaine and me, Benito. In the tabulation of 100 issues in the back of issue 100, they don’t count the FCBD issue, but a) they accidentally double counted one of the Halloween specials and b) I do count the FCBD special, which fits in between the New Series and the 100 series.)
There’s also The Tick FCBD Special 2013, which is by Jeff McClelland and Duane Redhead. I would number it #102, but that’s where The Tick #102 goes whenever it comes out.
These are handbooks, in the style of Who’s Who or the Marvel Official Handbooks.
The Tick’s Giant Circus of the Mighty #1-3 (1992-1993)
The Tick Circus Maximus #1-4
The Tick Circus Update 2001 and 2003
Paul the Samurai Mini-Series #1-3
Paul the Samurai Ongoing #1-10
And, not counting reprints or collections, I'm pretty sure that’s everything.
And everything is available in one form or another at The Tick Catalog.