Choose System Shock® 2 (1999)
Choose System Shock® 2 (1999) if you want a RPG game with Co-op. On Steam, it has co-op, so you can bring a friend. 4,870 Steam reviews back the pick.
System Shock® 2 (1999) vs E.T. Armies
System Shock® 2 (1999) and E.T. Armies both land in Action on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Action games on Steam. System Shock® 2 (1999) (2013) is 3 years older than E.T. Armies (2016). System Shock® 2 (1999) scores higher on Steam reviews (94.5% positive) than E.T. Armies (59.8% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose E.T. Armies
Choose E.T. Armies if it's the newer release (2016) and ships with the modern feature baseline. E.T. Armies launched in 2016.
Both System Shock® 2 (1999) and E.T. Armies sit in Action on Steam and both list Multi-player, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 System Shock® 2 (1999) |  E.T. Armies | |
|---|---|---|
| Released | 2013 | 2016 |
| Genres | Action, RPG | Action |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | Price unknown | 1.49 USD |
| Steam reviews | 94.5% positive (4,870 reviews) | 59.8% positive (92 reviews) |
| Multiplayer | Multi-player, Co-op | Multi-player |
| Developers | Nightdive Studios, Irrational Games, Looking Glass Studios | Raspina Studio |
Side by side
- Both are Action games on Steam.
- System Shock® 2 (1999) (2013) is 3 years older than E.T. Armies (2016).
- System Shock® 2 (1999) scores higher on Steam reviews (94.5% positive) than E.T. Armies (59.8% positive).
- System Shock® 2 (1999) has co-op; E.T. Armies does not.
- System Shock® 2 (1999) is Deck Playable on Steam Deck; E.T. Armies has no Deck rating yet.
System Shock® 2 (1999) vs E.T. Armies — FAQ
- Should I play System Shock® 2 (1999) or E.T. Armies first?
- If you want chronology, System Shock® 2 (1999) (2013) came out before E.T. Armies (2016). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are System Shock® 2 (1999) and E.T. Armies similar?
- They overlap on Action on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does System Shock® 2 (1999) run on Steam Deck?
- Yes — System Shock® 2 (1999) is rated Deck Playable by Valve. E.T. Armies doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.