The counts are updated once every 2 hours, and aren't totally accurate but are a good indication of what's going on.

We queried 1461 servers but only 1157 replied, of which 123 were listen servers. Last updated 14 Minutes ago

1. Sandbox 796
2. DarkRP 85
3. SpaceBuild2 57
4. Stranded 27
5. Zombie Survival 14
6. EpicRP 10
7. Onslaught: Evolved 8
8. RRPX 7
9. CakeScript 7
10. Prop Hunt 6
11. Hover Skate 6
12. TacoScript - Complete, Bitch - 6
13. ReDead 5
14. Go Fish 4
15. Infected Wars 4
16. MingeBag_SandBox 4
17. Sassilization 4
18. Half-Life 2 Campaign 3
19. LightRP 3
20. StargateRP V1.22 2
21. HarmonyScript 2
22. Quarantine Alpha 0.24 2
23. |YaS| Build 2
24. Spacebuild 3 Beta 2
25. Counter-Strike: Source 2
26. LappyRP Beta 2
27. WCA RPDM 2
28. DivineRP 3.3 2
29. Naval Play 2
30. NoX 2 Arena 2
31. GU-Script v0.9 2
32. It's TacoScript, baby! 2
33. Life-City RP Stargate - V1 R1 V2 BETA 2
34. Life-City RP 2 - V1.0.0 BETA 2
35. PG-RP 2.28 2
36. MMOscript 2
37. Mutation Evolutions 2
38. StargateRP V1.25b (modded) 2
39. IC-RP 3.0 2
40. HL2 Campaign v1.12 2
41. MingeBag_Space_Adventure_V0.3 2
42. RRPX-bugfix-b2 2
43. MelonRacer 2.0 2
44. Phyght (v1.4) 1
45. Mario Boxes 2D (CTC) 1
46. SathyrScript 1
47. FearScript 1
48. Timberwolf 1
49. Broken Garry's Mod 1
50. Lost Beta 1
51. DesertiaScript Redux 1
52. Paintball 1
53. The Lounge 1
54. StargateRP V1.25a 1
55. New Horizons 1
56. RealLife RP 1.0 1
57. Eon CTF Gamemode 1
58. MelonRacer 1
59. Garry's Mod 1
60. Gmod Strabted 1
61. AAStation v0.1 1
62. Parasite - 0.35B_official 1
63. AAFortWars v0.5 1
64. GMod Racer 1
65. NoX Assault: Destroy the Core 1
66. Murder 1
67. EXRP-Script 1
68. Stargate RP v0.2 1
69. ZombieRP 3.4 1
70. RP08 1
71. FortWars: VIP 1
72. Darkland RP 1
73. Incursion 1
74. The Zone 1
75. Hl2LandRPv1.5 1
76. Hl2land.net Roleplay V2 1
77. Cider 1
78. Garry's Bots 1.4 1
79. Mutate 1
80. RRPX-RandomRoleplay.com 1
81. FortWars Nican 0.2Beta 1
82. Prop Hunt v1.07 1
83. RefugeeRP 2.0 Relaunched 1
84. ZombieRP 1
85. Parasite - 0.35_test 1
86. TacoScript 1
87. Ramboserver Onslaught 1
88. Dennis Meyers RP 1
89. Saric Roleplay 1
90. TnB's Giant Vagina 1.2 1
91. BlackOcean 1
92. Shhh...Script 1
93. Pripyat Beta 1
94. ImpulseScript 1
95. TacoScript -Solitary Society- 1
96. Zinger 1