Statistics for Valve games

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Hint	Answer	% Correct
HL	Half life	100%
HL2	Half life 2	100%
CS	Counter strike	81%
CS 1.6	Counter strike 1.6	81%
TF2	Team fortress 2	76%
LFD	Left 4 dead	71%
LFD2	Left 4 dead 2	71%
P	Portal	71%
P2	Portal 2	71%
HL2 E1	Half life 2 episode 1	67%
HL2 E2	Half life 2 episode 2	67%
CSGO	Counter strike global offensive	62%
CSS	Counter strike source	57%
HLA	Half life alyx	57%
TFC	Team fortress classic	52%
HLBS	Half life blue shift	48%
HLS	Half life source	48%
D2	Dota 2	38%
HL2 LC	Half life 2 lost coast	38%
CSCD	Counter strike condition zero	29%
DOD	Day of defeat	29%
DODS	Day of defeat source	29%
A	Artifact	24%
BM	Black mesa	24%
HLD	Half life decay	24%
HLOF	Half life opposing forces	19%
AS	Alien swarm	14%
CSO	Counter strike online	14%
CSO2	Counter strike online 2	14%
DC	Deathmatch classic	14%
CSN	Counter strike neo	10%
CSNZ	Counter strike nexon zombies	10%
PSM	Portal stories mel	10%
AHL	Aperture hand lab	5%
CG	Codename gordon	5%
HL2S	Half life 2 survivor	5%
HLC	Half life caged	5%
HLE	Half life echoes	5%
PSA	Portal still alive	5%
PTFV	Portal the flash version	5%
ADJ	Aperture desk job	0%
BC	Bridge constructor	0%
CSM	Counter strike maldivas	0%
TI	Tactical intervention	0%
TL	The lab	0%