Half-life Episode 1, 2 and Lost Coast is in my tools tab.

[raikunel]

How do I get it into my games tab?

[cSg|mc-Hotsauce]

Tell Valve to fix it.

[Black One]

Same issue here...

I read some of forums... Apparently the episodes are included in the base HL2 now. I am not sure since I didn't open the game. Also they said "Lost Coast" is also included but in the "extras" tab in the game menu.

[Blaagh]

was going to say 'I don't even own hl2' .. but its free right now

[cSg|mc-Hotsauce]

From their announcement, at the bottom...

With the Episodes and Lost Coast now contained within Half-Life 2 itself, we'll be reducing the visibility of the standalone versions on the Steam Store. The old standalone applications will remain available to ensure community projects that rely on them still function properly but they will now appear within the Tools menu on your Steam Library.

https://steamcommunity.com/games/220/announcements/detail/6633333780228604002?snr=2___