Games like Accretion, ranked by tags and themes. Prices included.

1
Orbitous
93%positive
PLN 13.49
2
ΔV: Rings of Saturn
93%positive
PLN 4.92
3
Black Hole Simulator
82%positive
PLN 8.99
4
Inspiral: Echoes of Gravity
75%positive
PLN 11.72
5
Astrox Imperium
84%positive
PLN 53.99
6
Solar System Simulator
86%positive
PLN 36.99
7
Galactic Conflict
50%positive
PLN 17.99
8
Celestial Command
62%positive
PLN 59.99
9
Galactic Glitch
90%positive
PLN 5.99
10
Space Simulation Toolkit
81%positive
PLN 80.49
11
Periapsis: Gravity Slingshot
87%positive
PLN 20.82
12
Astrometica
83%positive
PLN 32.35
13
Celestia
94%positive
PLN 8.35
14
Sector Space
93%positive
PLN 22.99
15
A Game About Feeding A Black Hole
89%positive
PLN 29.75
16
Keng's Little Universe
88%positive
PLN 27.50
17
Deep Space Exploitation
97%positive
PLN 40.99
18
Astrox: Hostile Space Excavation
84%positive
PLN 35.99
19
Cosmochoria
87%positive
PLN 20.52
20
Astro Prospector
92%positive
PLN 19.99
21
Galactic Simulator
78%positive
PLN 10.74
22
SPACERIFT: Arcanum System
77%positive
PLN 91.99
23
Astronomics
90%positive
PLN 52.49
24
Tiny Space Academy
65%positive
PLN 22.99
25
A Game About Getting Bigger
100%positive
PLN 12.56
26
Star Explorers
83%positive
PLN 22.99
27
Spacetime Dimension
100%positive
PLN 3.59
28
Galactic Mining Corp
84%positive
PLN 18.79
29
INTERSTELLAR PRIME
56%positive
PLN 35.99
30
Astro Colony
81%positive
PLN 55.19
31
Drifter Star: Evolution
74%positive
PLN 5.92
32
Space Atlas: The Solar System
83%positive
PLN 22.99
33
ORBITAL
75%positive
PLN 39.99
34
Enter the Chronosphere
94%positive
PLN 28.25
35
Periapsis: Eclipse
73%positive
PLN 53.99
36
Transcendence
89%positive
PLN 53.99
37
Interplanetary: Enhanced Edition
85%positive
PLN 7.63
38
Heavenly Bodies
95%positive
PLN 12.01
39
Arc Savior
71%positive
PLN 45.99
What games are like Accretion?

The closest matches to Accretion right now are Orbitous, ΔV: Rings of Saturn, Black Hole Simulator, Inspiral: Echoes of Gravity, Astrox Imperium. The ranking compares 42 games by shared tags, theme and review quality, each with its cheapest price across official stores and keyshops.