This was the peak era for this game as it moved from browsers to early mobile-friendly formats. Where can you actually download them?
The Strange Case of "War in Heaven - 1917": A Forgotten PC Relic? Download War in Heaven - 1917 PC Game 2009
Originally released in 1999 by and published by ValuSoft , this is a Christian-themed FPS often described as "Doom-meets-the-Bible". It gained a second life in 2009 through various "abandonware" and gameplay videos on YouTube . This was the peak era for this game