Thick as Thieves Drops PvPvE Plans as Warren Spector’s New Immersive Sim Shifts to Co Op and Single Player
Thick as Thieves, the upcoming immersive sim from OtherSide Entertainment, has taken a major new direction. Originally revealed as a PvPvE multiplayer project, the game is now moving away from player versus player competition and focusing instead on two player co op and single player gameplay. For a title led by Warren Spector, the creator of Deus Ex, and Paul Neurath, whose legacy includes landmark titles such as System Shock 2 and Thief, the change may actually bring the game closer to the kind of design strengths fans most associate with the team.
The update was confirmed in a new post on the game’s Steam page, where the studio explained that the decision came directly from development experience and internal playtesting. As the world of Kilcarin continued to take shape, the team found that the project felt more enjoyable when played alone or cooperatively, rather than as a competitive PvPvE experience.
OtherSide addressed the change directly in its statement, writing, "When we first revealed Thick as Thieves we intended to focus on PvPvE gameplay. However, as development progressed and the world of Kilcarin has come to life, we found that we were having more fun with solo and co op play. So, we've taken a decision we feel is right for the game: Thick as Thieves is now focused on two player co op and single player." "Quote by: OtherSide Entertainment"
That is a significant shift, but it also sounds like a practical one. The immersive sim genre has always thrived on player agency, environmental interaction, stealth experimentation, and layered world systems. Those qualities can absolutely exist in competitive multiplayer, but they are often easier to fully realize in solo or co op structures, where pacing, tension, and player choice can be more carefully shaped. In that sense, this pivot may not be a retreat from the game’s original ambition, but rather a refinement of where its core identity works best.
The studio also explained that this narrower focus is already paying off in tangible ways during development. According to the post, the move has allowed the team to put more energy into dynamic stealth gameplay, which remains one of the game’s central pillars. OtherSide noted that this stronger focus is already improving the moment to moment experience, whether players are approaching missions alone or working alongside a partner in co op.
That detail may be the most encouraging part of the announcement. Thick as Thieves is being built by developers whose reputations were shaped by games that excelled because of their depth, atmosphere, freedom, and systemic design. Those qualities are often at their strongest when every encounter is driven by player improvisation rather than by the constant balancing pressures of competitive multiplayer. In a market where many PvPvE and live service projects struggle to maintain momentum after launch, leaning into the team’s strongest creative instincts could prove to be the smarter long term move.
The timing of the announcement also appears deliberate. OtherSide said it wanted to share the update ahead of the upcoming Triple I Initiative Showcase, where Thick as Thieves will appear on April 9, 2026. Making the change public before that presentation gives players the right context going into the next reveal. Instead of expecting a competitive stealth experience, viewers can now judge the game for what it is actually trying to become: a stealth driven immersive sim built around solo play and two player co op.
At this stage, the game still appears to be targeting a 2026 release, based on the most recent release window previously shared during The Game Awards 2024. While no updated launch date has been confirmed yet, the showcase later this week could potentially offer a clearer look at gameplay, structure, and perhaps even a firmer timeline.
From a broader industry perspective, this change also feels timely. Even though some PvPvE titles have recently found real success, the category remains one of the hardest to sustain. Competitive multiplayer demands long term balancing, retention, content cadence, and community management on a scale that can overwhelm even well funded teams. For a project like Thick as Thieves, which is tied so closely to the immersive sim legacy of its creators, a move toward solo and co op play may ultimately give the game a better chance to stand out on its own merits rather than being forced into a crowded survival contest.
For fans of stealth games, systemic gameplay, and classic immersive sim design, this pivot may end up being the best possible news. Rather than chasing trends, Thick as Thieves now appears to be leaning harder into what made Warren Spector and Paul Neurath’s earlier work so influential in the first place. If OtherSide can deliver a rich world, smart level design, and flexible stealth systems with meaningful co op support, the game could still become one of the more interesting releases to watch this year.
Do you think Thick as Thieves is better off focusing on co op and single player, or were you more interested in the original PvPvE concept?
