Best Alien Sci-Fi (30 books)

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List of books with the most interesting aliens, alien cultures, MC, tech, villains, sidekicks, pets, science. Please no fantasy or romance.

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1	Paradox Lost by V.R. Ling it was amazing 5.00 avg rating — 4 ratings score: 300, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
2	Rendezvous with Rama (Rama, #1) by Arthur C. Clarke 4.12 avg rating — 190,284 ratings score: 193, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
2	Star Wars: Heir to the Empire (Thrawn Trilogy, #1) by Timothy Zahn (Goodreads Author) 4.18 avg rating — 106,886 ratings score: 193, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
4	The Gods Themselves by Isaac Asimov 4.08 avg rating — 70,627 ratings score: 191, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
5	Arrival by Ted Chiang 4.25 avg rating — 132,365 ratings score: 189, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
6	Contact by Carl Sagan 4.15 avg rating — 156,128 ratings score: 188, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
7	The Mote in God's Eye (Moties, #1) by Larry Niven 4.07 avg rating — 73,938 ratings score: 100, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
7	Greegs & Ladders by Zack Mitchell 3.11 avg rating — 286 ratings score: 100, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
9	We Are Legion (We Are Bob) (Bobiverse, #1) by Dennis E. Taylor (Goodreads Author) 4.24 avg rating — 144,114 ratings score: 99, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
9	The Invisible Dimension: Book 2 In The Greegs Universe by Zack Mitchell 4.67 avg rating — 6 ratings score: 99, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
11	The Gripping Hand (Moties, #2) by Larry Niven 3.84 avg rating — 12,719 ratings score: 98, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
12	Fear the Sky (The Fear Saga, #1) by Stephen Moss (Goodreads Author) 4.07 avg rating — 7,780 ratings score: 97, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
13	Dragon's Egg (Cheela, #1) by Robert L. Forward 4.12 avg rating — 10,244 ratings score: 95, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
14	Live Free or Die (Troy Rising, #1) by John Ringo 4.17 avg rating — 9,672 ratings score: 94, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
15	Old Man's War (Old Man's War, #1) by John Scalzi (Goodreads Author) 4.23 avg rating — 233,704 ratings score: 91, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
16	The Three-Body Problem (Remembrance of Earth’s Past, #1) by Liu Cixin (Goodreads Author) 4.08 avg rating — 534,750 ratings score: 88, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
17	Project Hail Mary by Andy Weir (Goodreads Author) 4.51 avg rating — 1,846,053 ratings score: 87, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
18	Columbus Day (Expeditionary Force, #1) by Craig Alanson (Goodreads Author) 4.25 avg rating — 35,918 ratings score: 86, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
19	The Bobiverse by Dennis E. Taylor (Goodreads Author) 4.73 avg rating — 1,808 ratings score: 85, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
20	For We Are Many (Bobiverse, #2) by Dennis E. Taylor (Goodreads Author) 4.36 avg rating — 82,548 ratings score: 84, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
21	A Fire Upon the Deep (Zones of Thought, #1) by Vernor Vinge 4.13 avg rating — 68,493 ratings score: 83, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
22	A Hymn Before Battle (Posleen War, #1) by John Ringo 4.03 avg rating — 13,934 ratings score: 82, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
23	Hyperion (Hyperion Cantos, #1) by Dan Simmons 4.28 avg rating — 317,575 ratings score: 81, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
24	Dungeon Crawler Carl (Dungeon Crawler Carl, #1) by Matt Dinniman (Goodreads Author) 4.43 avg rating — 594,166 ratings score: 80, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
25	Childhood’s End by Arthur C. Clarke 4.12 avg rating — 178,420 ratings score: 79, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
26	The Long Way to a Small, Angry Planet (Wayfarers, #1) by Becky Chambers (Goodreads Author) 4.16 avg rating — 196,879 ratings score: 78, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
27	Embassytown by China Miéville (Goodreads Author) 3.90 avg rating — 35,612 ratings score: 77, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
28	The Forever War (The Forever War, #1) by Joe Haldeman 4.14 avg rating — 185,076 ratings score: 76, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
29	The 5th Wave (The 5th Wave, #1) by Rick Yancey really liked it 4.00 avg rating — 485,250 ratings score: 75, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
30	Little Fuzzy (Fuzzy Sapiens, #1) by H. Beam Piper 4.04 avg rating — 11,002 ratings score: 74, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars