RankScoreGenreGame
1.9.42StrategyMaster of Magic
2.9.39RPGADOM
3.9.38StrategyX-COM: Terror From the Deep
4.9.35StrategyMaster of Orion 1+2
5.9.27StrategyHeroes of Might and Magic 2
6.9.26RPGFallout 2
7.9.26StrategyDune II
8.9.25StrategyCivilization
9.9.24RPGPlanescape: Torment
10.9.23StrategyTransport Tycoon Deluxe
11.9.20StrategyJagged Alliance: Deadly Games
12.9.19RPGArcanum: Of Steamworks and Magick Obscura
13.9.18MultiplayerStarcraft
14.9.15ActionDuke Nukem 3D
15.9.12MultiplayerLeague of Legends
16.9.10ActionTIE Fighter
17.9.06ActionBlood
18.9.05StrategyWarlords 2
19.9.04MultiplayerStars!
20.9.03MultiplayerDota 2
21.9.03StrategyXCOM: Enemy Unknown
22.9.02StrategyMedieval: Total War
23.9.01StrategyColonization
24.9.01RPGThe Witcher 2: Assassins Of Kings
25.9.00StrategyMagic: The Gathering
26.8.99RPGBaldur's Gate 2 Complete
27.8.99StrategyM.A.X. + M.A.X. 2
28.8.99StrategyWarhammer: Dark Omen
29.8.97RPGBaldur's Gate: The Original Saga
30.8.96ActionFreespace 2
31.8.95RPGDiablo
32.8.92StrategyZ
33.8.91ActionDescent + Descent 2
34.8.91StrategyDwarf Fortress
35.8.90StrategyJagged Alliance 2
36.8.89RPGMinecraft
37.8.89RPGThe Elder Scrolls V: Skyrim
38.8.89StrategySimCity 2000
39.8.87StrategyJagged Alliance
40.8.86AdventureLittle Big Adventure
41.8.84StrategyWarcraft 2
42.8.82MultiplayerCounter-Strike
43.8.82MultiplayerWorld of Warcraft
44.8.82ActionPsychonauts
45.8.82StrategySid Meier's Alpha Centauri™
46.8.82StrategyCapitalism Plus
47.8.81MultiplayerUnreal Tournament
48.8.81StrategyHeroes of Might and Magic 3
49.8.81StrategyTotal Annihilation: Commander Pack
50.8.80ActionStar Control 1+2
51.8.80RPGFallout: A Post Nuclear Role Playing Game
52.8.79RPGSystem Shock™ 2
53.8.79StrategyPanzer General
54.8.79StrategyLords of the Realm
55.8.78StrategyWarhammer: Shadow of the Horned Rat
56.8.77RPGBetrayal at Krondor Pack
57.8.77ActionQUAKE
58.8.76StrategyThe Corporate Machine
59.8.74ActionDOOM II
60.8.74SportStreet Rod
61.8.71ActionDoom Roguelike
62.8.70StrategyRollerCoaster Tycoon: Deluxe
63.8.69SportLotus 3
64.8.68MultiplayerCounter-Strike: Global Offensive
65.8.65ArtJourney
66.8.63SportQuarantine
67.8.61MultiplayerEVE Online
68.8.61RPGThe Elder Scrolls III: Morrowind
69.8.61StrategyKingdom Rush
70.8.61ActionTomb Raider
71.8.61StrategySettlers 2
72.8.60ActionTeam Fortress 2
73.8.60RPGThe Witcher: Enhanced Edition Director's Cut
74.8.60MultiplayerRise of Mythos
75.8.60RPGAlbion
76.8.59StrategyCaesar 3
77.8.58ActionWolfenstein 3D
78.8.57RPGEpic Battle Fantasy 3
79.8.56MultiplayerUrban Terror
80.8.56ActionThief™ Gold
81.8.56ActionEffing Worms 2
82.8.55ActionHexen
83.8.55ActionCall of Duty
84.8.53AdventureBeneath a Steel Sky
85.8.52MultiplayerTyrant
86.8.52RPGSonny 2
87.8.52RPGWasteland 1 – The Original Classic
88.8.50RPGDeus Ex
89.8.50StrategySid Meier's Civilization® V
90.8.50MultiplayerYu-Gi-Oh! BAM
91.8.50StrategyEuropa Universalis IV
92.8.50ActionSaboteur
93.8.49StrategyMonsters' Den: Book of Dread
94.8.49SportFootball Manager 2014
95.8.49RPGWitcher: Enhanced Edition, The
96.8.49StrategyTheme Hospital
97.8.48StrategyRebuild
98.8.46StrategyCaravaneer
99.8.46StrategyProtector
100.8.45MultiplayerElements
 
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5000 Best Games by Arek Paterek (Twitter), 2014.
Score is based on my judgement, Steam, GOG, and Kongregate.