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The story takes place in the near future. Your objective is to make "first contact" with an alien life form. Any violation of the Protocol will lead to the elimination of you and the entire operation. Remember, the fate of the humanity may depend on your actions. Once signed, the Protocol must be promptly implemented.
Game modes: Single player
Right now the lowest price for Protocol we're tracking is $8.99 at Steam. We compare 2 stores and prices refresh every few minutes.
The lowest price we've recorded for Protocol is $5.39 at Steam on August 3, 2026. The current best price is about 67% above that low.
73% of 302 Steam user reviews for Protocol are positive ("Mostly Positive").
Protocol released on February 1, 2018, developed by Fair Games Studio and published by Fair Games Studio, Samustai.
Protocol is available on PlayStation 4, PC (Microsoft Windows), Xbox One. It supports single player.
Protocol last hit a new low of $5.39 on August 3, 2026 at Steam. Current best price is $8.99. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.
The cheapest Protocol price right now is $8.99 at Steam.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 SteamBest price | — | $8.99 | Buy Protocol at Steam |
 Green Man Gaming | — | $8.99 | Buy Protocol at Green Man Gaming |
All-time low: $5.39 at Steam on Aug 3, 2026 — the current best price is 67% above it.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
